79514910538 has 32 divisors (see below), whose sum is σ = 140252112000. Its totient is φ = 33101369280.

The previous prime is 79514910511. The next prime is 79514910539. The reversal of 79514910538 is 83501941597.

It is a super-2 number, since 2×79514910538² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (79514910539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 255913 + ... + 473836.

It is an arithmetic number, because the mean of its divisors is an integer number (4382878500).

Almost surely, 2^79514910538 is an apocalyptic number.

79514910538 is a deficient number, since it is larger than the sum of its proper divisors (60737201462).

79514910538 is a wasteful number, since it uses less digits than its factorization.

79514910538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729982.

The product of its (nonzero) digits is 1360800, while the sum is 52.

The spelling of 79514910538 in words is "seventy-nine billion, five hundred fourteen million, nine hundred ten thousand, five hundred thirty-eight".