You can store the first 2^53 integers with either sign, and if you need accurate...

data-ottawa on May 21, 2023 | parent | context | favorite | on: TOML: Tom's Obvious Minimal Language

You can store the first 2^53 integers with either sign, and if you need accurate integer values beyond that size you can stringify them and parse as big ints.

It’s not ideal, but 2^64 integers is also finite.