13191565038 has 32 divisors (see below), whose sum is σ = 29149652736. Its totient is φ = 3958593408.

The previous prime is 13191565027. The next prime is 13191565039. The reversal of 13191565038 is 83056519131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13191565039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2809156 + ... + 2813847.

It is an arithmetic number, because the mean of its divisors is an integer number (910926648).

Almost surely, 2^13191565038 is an apocalyptic number.

13191565038 is an abundant number, since it is smaller than the sum of its proper divisors (15958087698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13191565038 is a wasteful number, since it uses less digits than its factorization.

13191565038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5623048.

The product of its (nonzero) digits is 97200, while the sum is 42.

The spelling of 13191565038 in words is "thirteen billion, one hundred ninety-one million, five hundred sixty-five thousand, thirty-eight".