13031265638625 has 64 divisors (see below), whose sum is σ = 23454003955200. Its totient is φ = 6387376953600.

The previous prime is 13031265638597. The next prime is 13031265638711. The reversal of 13031265638625 is 52683656213031.

It is not a de Polignac number, because 13031265638625 - 2⁶ = 13031265638561 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4720045 + ... + 6952794.

It is an arithmetic number, because the mean of its divisors is an integer number (366468811800).

Almost surely, 2^{13031265638625} is an apocalyptic number.

13031265638625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13031265638625 is a deficient number, since it is larger than the sum of its proper divisors (10422738316575).

13031265638625 is a wasteful number, since it uses less digits than its factorization.

13031265638625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11673099 (or 11673089 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 51.

The spelling of 13031265638625 in words is "thirteen trillion, thirty-one billion, two hundred sixty-five million, six hundred thirty-eight thousand, six hundred twenty-five".