72531030425313 has 24 divisors (see below), whose sum is σ = 102969735131520. Its totient is φ = 45404075042560.

The previous prime is 72531030425309. The next prime is 72531030425327. The reversal of 72531030425313 is 31352403013527.

It is not a de Polignac number, because 72531030425313 - 2² = 72531030425309 is a prime.

It is a super-2 number, since 2×72531030425313² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72531030425813) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96676758 + ... + 97424111.

It is an arithmetic number, because the mean of its divisors is an integer number (4290405630480).

Almost surely, 2^{72531030425313} is an apocalyptic number.

It is an amenable number.

72531030425313 is a deficient number, since it is larger than the sum of its proper divisors (30438704706207).

72531030425313 is a wasteful number, since it uses less digits than its factorization.

72531030425313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194101337 (or 194101320 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 39.

The spelling of 72531030425313 in words is "seventy-two trillion, five hundred thirty-one billion, thirty million, four hundred twenty-five thousand, three hundred thirteen".