79598916640 has 24 divisors (see below), whose sum is σ = 188052440940. Its totient is φ = 31839566592.

The previous prime is 79598916619. The next prime is 79598916737. The reversal of 79598916640 is 4661989597.

It can be written as a sum of positive squares in 2 ways, for example, as 79269276304 + 329640336 = 281548^2 + 18156^2 .

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248746455 + ... + 248746774.

Almost surely, 2^79598916640 is an apocalyptic number.

It is an amenable number.

79598916640 is an abundant number, since it is smaller than the sum of its proper divisors (108453524300).

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

79598916640 is a wasteful number, since it uses less digits than its factorization.

79598916640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497493244 (or 497493236 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 64.

The spelling of 79598916640 in words is "seventy-nine billion, five hundred ninety-eight million, nine hundred sixteen thousand, six hundred forty".