# Billion

## Billion

One thousand groups of one million units, in the decimal number system.

### Notations

The number 64 000 000 000 is read as “sixty-four billions”.
One billion is written as “1 000 000 000” or “$$10{^9}$$“.

### Examples

• In the number 64 789 000 000, there are 64 billions.
• In the number 64 789 000 000, the digit 4 occupies the billions position.
• The value of the digit 4 in the number 64 789 000 000 is 4 billions or 4 000 000 000.