Q: What is the negative version of the number 644,730,145?
A: -644,730,145
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:
| 644,730,143 | 644,730,144 | 644,730,146 | 644,730,147 |
| -644,730,143 | -644,730,144 | -644,730,146 | -644,730,147 |