Q: What is the negative version of the number 643,355,619?
A: -643,355,619
Negative numbers are usually written with - in front of them. They represent a number that is less than zero.
Here are more examples of negative numbers in sequence:
| 643,355,617 | 643,355,618 | 643,355,620 | 643,355,621 |
| -643,355,617 | -643,355,618 | -643,355,620 | -643,355,621 |