78107110135 has 4 divisors (see below), whose sum is σ = 93728532168. Its totient is φ = 62485688104.

The previous prime is 78107110117. The next prime is 78107110177. The reversal of 78107110135 is 53101170187.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78107110135 is a prime.

It is a super-2 number, since 2×78107110135² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78107110135.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7810711009 + ... + 7810711018.

It is an arithmetic number, because the mean of its divisors is an integer number (23432133042).

Almost surely, 2^78107110135 is an apocalyptic number.

78107110135 is a deficient number, since it is larger than the sum of its proper divisors (15621422033).

78107110135 is a wasteful number, since it uses less digits than its factorization.

78107110135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15621422032.

The product of its (nonzero) digits is 5880, while the sum is 34.

The spelling of 78107110135 in words is "seventy-eight billion, one hundred seven million, one hundred ten thousand, one hundred thirty-five".