How do you write 7 billion in digits?

Answer 1

* In those countries that use the long scale (based on powers of a million) like Europe:

7 billion = 7 × (10^6)^2 = 7 × 10^12 = 7,000,000,000,000

* In those countries that use the short scale (based on powers of a thousand plus one) like USA:

7 billion = 7 × (10^3)^(2+1) = 7 × 10^9 = 7,000,000,000

The UK uses the same scale as the US.

Answer 2

7 billion in digits is as follows: 7,000,000,000