10 digits:
1,000,000,000 is one billion dollars.
If you mean how many digits does a billion have, then one billion = 1,000,000,000 which is one, followed by 9 zeros, or ten digits
1.000.000.00
3
One billion is written as 1,000,000,000 - 10 total digits.
There are 10 digits in a billion.
10 digits
13 digits.
One thousand billion in digits looks like this: 1,000,000,000,000
10
One. ("Billion" IS the number in this case.)
9
1234 billion