79179928793 has 16 divisors (see below), whose sum is σ = 90926976384. Its totient is φ = 67542034560.

The previous prime is 79179928733. The next prime is 79179928859. The reversal of 79179928793 is 39782997197.

It is not a de Polignac number, because 79179928793 - 2¹⁰ = 79179927769 is a prime.

It is a super-2 number, since 2×79179928793² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79179928703) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4537421 + ... + 4554837.

It is an arithmetic number, because the mean of its divisors is an integer number (5682936024).

Almost surely, 2^79179928793 is an apocalyptic number.

It is an amenable number.

79179928793 is a deficient number, since it is larger than the sum of its proper divisors (11747047591).

79179928793 is a wasteful number, since it uses less digits than its factorization.

79179928793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20512.

The product of its digits is 108020304, while the sum is 71.

The spelling of 79179928793 in words is "seventy-nine billion, one hundred seventy-nine million, nine hundred twenty-eight thousand, seven hundred ninety-three".