13087111568 has 40 divisors (see below), whose sum is σ = 25452835200. Its totient is φ = 6518689920.

The previous prime is 13087111567. The next prime is 13087111591. The reversal of 13087111568 is 86511178031.

It is not an unprimeable number, because it can be changed into a prime (13087111567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7701983 + ... + 7703681.

It is an arithmetic number, because the mean of its divisors is an integer number (636320880).

Almost surely, 2^13087111568 is an apocalyptic number.

It is an amenable number.

13087111568 is a deficient number, since it is larger than the sum of its proper divisors (12365723632).

13087111568 is a wasteful number, since it uses less digits than its factorization.

13087111568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3255 (or 3249 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 41.

Adding to 13087111568 its reverse (86511178031), we get a palindrome (99598289599).

The spelling of 13087111568 in words is "thirteen billion, eighty-seven million, one hundred eleven thousand, five hundred sixty-eight".