79611920800 has 36 divisors (see below), whose sum is σ = 194352603606. Its totient is φ = 31844768000.

The previous prime is 79611920783. The next prime is 79611920813. The reversal of 79611920800 is 802911697.

It can be written as a sum of positive squares in 3 ways, for example, as 77580075024 + 2031845776 = 278532^2 + 45076^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49756651 + ... + 49758250.

Almost surely, 2^79611920800 is an apocalyptic number.

It is an amenable number.

79611920800 is an abundant number, since it is smaller than the sum of its proper divisors (114740682806).

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

79611920800 is a wasteful number, since it uses less digits than its factorization.

79611920800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99514921 (or 99514908 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 43.

The spelling of 79611920800 in words is "seventy-nine billion, six hundred eleven million, nine hundred twenty thousand, eight hundred".