78518635113 has 16 divisors (see below), whose sum is σ = 105647371200. Its totient is φ = 51869276160.

The previous prime is 78518635087. The next prime is 78518635133. The reversal of 78518635113 is 31153681587.

It is not a de Polignac number, because 78518635113 - 2⁵ = 78518635081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78518635133) 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, 36553 + ... + 397961.

It is an arithmetic number, because the mean of its divisors is an integer number (6602960700).

Almost surely, 2^78518635113 is an apocalyptic number.

It is an amenable number.

78518635113 is a deficient number, since it is larger than the sum of its proper divisors (27128736087).

78518635113 is a wasteful number, since it uses less digits than its factorization.

78518635113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362072.

The product of its digits is 604800, while the sum is 48.

The spelling of 78518635113 in words is "seventy-eight billion, five hundred eighteen million, six hundred thirty-five thousand, one hundred thirteen".