79899955200 has 1404 divisors, whose sum is σ = 338283713040. Its totient is φ = 18632540160.

The previous prime is 79899955189. The next prime is 79899955237. The reversal of 79899955200 is 255999897.

79899955200 is a `hidden beast` number, since 79 + 8 + 9 + 9 + 9 + 552 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1404).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 4205260791 + ... + 4205260809.

Almost surely, 2^79899955200 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79899955200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169141856520).

79899955200 is an abundant number, since it is smaller than the sum of its proper divisors (258383757840).

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

79899955200 is a wasteful number, since it uses less digits than its factorization.

79899955200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94 (or 42 counting only the distinct ones).

The product of its (nonzero) digits is 18370800, while the sum is 63.

The spelling of 79899955200 in words is "seventy-nine billion, eight hundred ninety-nine million, nine hundred fifty-five thousand, two hundred".