Q: What is the negative version of the number 644,406,634?
A: -644,406,634
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:
| 644,406,632 | 644,406,633 | 644,406,635 | 644,406,636 |
| -644,406,632 | -644,406,633 | -644,406,635 | -644,406,636 |