13504572865 has 16 divisors (see below), whose sum is σ = 18608342400. Its totient is φ = 9216385920.

The previous prime is 13504572859. The next prime is 13504572881. The reversal of 13504572865 is 56827540531.

It is not a de Polignac number, because 13504572865 - 2¹¹ = 13504570817 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 906940 + ... + 921709.

It is an arithmetic number, because the mean of its divisors is an integer number (1163021400).

Almost surely, 2^13504572865 is an apocalyptic number.

It is an amenable number.

13504572865 is a deficient number, since it is larger than the sum of its proper divisors (5103769535).

13504572865 is a wasteful number, since it uses less digits than its factorization.

13504572865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828872.

The product of its (nonzero) digits is 1008000, while the sum is 46.

The spelling of 13504572865 in words is "thirteen billion, five hundred four million, five hundred seventy-two thousand, eight hundred sixty-five".