79475604638868 has 36 divisors (see below), whose sum is σ = 206326306941300. Its totient is φ = 25775871774336.

The previous prime is 79475604638867. The next prime is 79475604638891. The reversal of 79475604638868 is 86883640657497.

79475604638868 is a `hidden beast` number, since 7 + 9 + 4 + 7 + 560 + 46 + 3 + 8 + 8 + 6 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 34969387634064 + 44506217004804 = 5913492^2 + 6671298^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79475604638867) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29833183593 + ... + 29833186256.

It is an arithmetic number, because the mean of its divisors is an integer number (5731286303925).

Almost surely, 2^{79475604638868} is an apocalyptic number.

It is an amenable number.

79475604638868 is an abundant number, since it is smaller than the sum of its proper divisors (126850702302432).

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

79475604638868 is a wasteful number, since it uses less digits than its factorization.

79475604638868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59666369896 (or 59666369891 counting only the distinct ones).

The product of its (nonzero) digits is 11705057280, while the sum is 81.

The spelling of 79475604638868 in words is "seventy-nine trillion, four hundred seventy-five billion, six hundred four million, six hundred thirty-eight thousand, eight hundred sixty-eight".