79637638560 has 96 divisors (see below), whose sum is σ = 251835054912. Its totient is φ = 21154037760.

The previous prime is 79637638547. The next prime is 79637638649. The reversal of 79637638560 is 6583673697.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 79637638494 and 79637638503.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199426 + ... + 446145.

It is an arithmetic number, because the mean of its divisors is an integer number (2623281822).

Almost surely, 2^79637638560 is an apocalyptic number.

It is an amenable number.

79637638560 is an abundant number, since it is smaller than the sum of its proper divisors (172197416352).

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

79637638560 is a wasteful number, since it uses less digits than its factorization.

79637638560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645846 (or 645838 counting only the distinct ones).

The product of its (nonzero) digits is 34292160, while the sum is 60.

The spelling of 79637638560 in words is "seventy-nine billion, six hundred thirty-seven million, six hundred thirty-eight thousand, five hundred sixty".