79911023995 has 16 divisors (see below), whose sum is σ = 104618218752. Its totient is φ = 58112984160.

The previous prime is 79911023963. The next prime is 79911023999. The reversal of 79911023995 is 59932011997.

It is not a de Polignac number, because 79911023995 - 2⁵ = 79911023963 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79911023999) 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, 883234 + ... + 969496.

It is an arithmetic number, because the mean of its divisors is an integer number (6538638672).

Almost surely, 2^79911023995 is an apocalyptic number.

79911023995 is a deficient number, since it is larger than the sum of its proper divisors (24707194757).

79911023995 is a wasteful number, since it uses less digits than its factorization.

79911023995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103122.

The product of its (nonzero) digits is 1377810, while the sum is 55.

The spelling of 79911023995 in words is "seventy-nine billion, nine hundred eleven million, twenty-three thousand, nine hundred ninety-five".