Q: What is the negative version of the number 638,406,869?
A: -638,406,869
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:
| 638,406,867 | 638,406,868 | 638,406,870 | 638,406,871 |
| -638,406,867 | -638,406,868 | -638,406,870 | -638,406,871 |