78860813113 has 4 divisors (see below), whose sum is σ = 78863749888. Its totient is φ = 78857876340.

The previous prime is 78860813089. The next prime is 78860813149. The reversal of 78860813113 is 31131806887.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 78860813113 - 2²⁵ = 78827258681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78860813153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1427733 + ... + 1481938.

It is an arithmetic number, because the mean of its divisors is an integer number (19715937472).

Almost surely, 2^78860813113 is an apocalyptic number.

It is an amenable number.

78860813113 is a deficient number, since it is larger than the sum of its proper divisors (2936775).

78860813113 is a wasteful number, since it uses less digits than its factorization.

78860813113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2936774.

The product of its (nonzero) digits is 193536, while the sum is 46.

The spelling of 78860813113 in words is "seventy-eight billion, eight hundred sixty million, eight hundred thirteen thousand, one hundred thirteen".