79797457602 has 24 divisors (see below), whose sum is σ = 173446882284. Its totient is φ = 26514169344.

The previous prime is 79797457589. The next prime is 79797457613. The reversal of 79797457602 is 20675479797.

79797457602 is a `hidden beast` number, since 7 + 97 + 97 + 457 + 6 + 0 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 59902073001 + 19895384601 = 244749^2 + 141051^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 79797457602.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7076143 + ... + 7087410.

Almost surely, 2^79797457602 is an apocalyptic number.

79797457602 is an abundant number, since it is smaller than the sum of its proper divisors (93649424682).

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

79797457602 is a wasteful number, since it uses less digits than its factorization.

79797457602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14163874 (or 14163871 counting only the distinct ones).

The product of its (nonzero) digits is 46675440, while the sum is 63.

The spelling of 79797457602 in words is "seventy-nine billion, seven hundred ninety-seven million, four hundred fifty-seven thousand, six hundred two".