31129409993275 has 96 divisors (see below), whose sum is σ = 43252916636160. Its totient is φ = 22027953024000.

The previous prime is 31129409993261. The next prime is 31129409993281. The reversal of 31129409993275 is 57239990492113.

It is not a de Polignac number, because 31129409993275 - 2¹¹ = 31129409991227 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7730171812 + ... + 7730175838.

It is an arithmetic number, because the mean of its divisors is an integer number (450551214960).

Almost surely, 2^{31129409993275} is an apocalyptic number.

31129409993275 is a deficient number, since it is larger than the sum of its proper divisors (12123506642885).

31129409993275 is a wasteful number, since it uses less digits than its factorization.

31129409993275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5765 (or 5760 counting only the distinct ones).

The product of its (nonzero) digits is 33067440, while the sum is 64.

The spelling of 31129409993275 in words is "thirty-one trillion, one hundred twenty-nine billion, four hundred nine million, nine hundred ninety-three thousand, two hundred seventy-five".