According to FIFA, the 2014 World Cup final between Argentina and Germany had 1 billion followers, while about 3.4 billion people watched the entire tournament.
By comparison, the number of spectators watching the US Super Bowl is only 150 million per year.
The 2018 World Cup is the same because Lionel Messi, Cristiano Ronaldo and Neymar alone have earned 309 million USD in the past 12 months from salaries, bonuses and advertising.
Here are the money figures at the 2018 World Cup
4/1: Brazil is placed with a championship ratio of 4-1, followed by Germany (9/2), Spain (13/2), France (13/2) and Argentina (9/10).
12: Number of teams sponsored by Adidas. Nike has 10 teams, while Puma has 4, New Balance has 2 and Umbro.
$110: The cheapest ticket price for the World Cup final and only for Russian fans. High prices can be up to $1,100. The opening match ticket price ranges from 50 to 550 USD.
1.18 million USD: According to Standard Media Index, the most expensive advertising price in the US was in the 2014 World Cup final.
2.4 million: Number of tickets sold before the opening match. Leading the way was the Russian fans with 871,797 tickets, followed by the US (88,825) and Brazil (72,512).
3.4 million: Total audience at the 2014 World Cup in Brazil, equivalent to 53,592 people/match. The 1994 World Cup in the US had the largest audience of 3.6 million people.
8 million: The shirt sold by Adidas in 2014. Without Italy, the Netherlands and the US this year, Adidas still hopes to reach a record figure.
18.2 million: ESPN's viewership of the US- portugal match at the 2014 World Cup. This is the most watched match in the US.
38 million USD: Bonus for the champion team. The runner-up will receive 28 million USD, the third team will receive 24 million USD. 16 teams eliminated from the group stage will each receive $8 million.
111 million USD: Lionel Messi (Argentina) income in the past 12 months. He is second in the list of highest-paid athletes in the world, after Floyd Mayweather.
177 million USD: Univision's advertising revenue at the 2014 World Cup according to Standard Media Index. ESPN earned $65 million and ABC $47 million.
322 million: Number of people following Ronaldo on Facebook, Twitter and Instagram.
400 million USD: Total prize money for 32 participating teams, each team receives 1.5 million USD before participating in the tournament as a preparation cost.
425 million USD: Fox's cost of US television rights at the 2018 and 2022 World Cups. Telemundo paid $600 million for Spanish copyright.
1.65 billion USD: Marketing copyright revenue for FIFA in the period 2015-2018. FIFA sets a target of $1.8 billion for the next 4 years.

3 billion USD: Television copyright revenue for FIFA in the period 2015-2018. FIFA sets a target of $3.5 billion for the next 4 years.
6.1 billion USD: Revenue for FIFA in the 2015-2019 period, increased by 10% thanks to partners in China. Of these, more than 4 billion USD was earned in 2018, including the World Cup.
11.6 billion USD: Estimated cost of Russia for the 2018 World Cup.
14 billion USD: Canada, Mexico and the US hope to achieve revenue of more than 14 billion USD when hosting the 2026 World Cup.