Q: What is the negative version of the number 644,426,413?
A: -644,426,413
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:
| 644,426,411 | 644,426,412 | 644,426,414 | 644,426,415 |
| -644,426,411 | -644,426,412 | -644,426,414 | -644,426,415 |