79136885171880 has 96 divisors (see below), whose sum is σ = 265491485775360. Its totient is φ = 20422421976960.

The previous prime is 79136885171863. The next prime is 79136885171881. The reversal of 79136885171880 is 8817158863197.

79136885171880 is a `hidden beast` number, since 7 + 9 + 1 + 368 + 85 + 1 + 7 + 188 + 0 = 666.

It is a super-3 number, since 3×79136885171880³ (a number of 43 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 79136885171799 and 79136885171808.

It is not an unprimeable number, because it can be changed into a prime (79136885171881) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3545548212 + ... + 3545570531.

It is an arithmetic number, because the mean of its divisors is an integer number (2765536310160).

Almost surely, 2^{79136885171880} is an apocalyptic number.

It is an amenable number.

79136885171880 is an abundant number, since it is smaller than the sum of its proper divisors (186354600603480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79136885171880 is a wasteful number, since it uses less digits than its factorization.

79136885171880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7091118791 (or 7091118784 counting only the distinct ones).

The product of its (nonzero) digits is 162570240, while the sum is 72.

The spelling of 79136885171880 in words is "seventy-nine trillion, one hundred thirty-six billion, eight hundred eighty-five million, one hundred seventy-one thousand, eight hundred eighty".