79959756800 has 312 divisors, whose sum is σ = 247225611072. Its totient is φ = 24920064000.

The previous prime is 79959756791. The next prime is 79959756803. The reversal of 79959756800 is 865795997.

It is not an unprimeable number, because it can be changed into a prime (79959756803) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7879730 + ... + 7889870.

Almost surely, 2^79959756800 is an apocalyptic number.

79959756800 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79959756800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123612805536).

79959756800 is an abundant number, since it is smaller than the sum of its proper divisors (167265854272).

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

79959756800 is a wasteful number, since it uses less digits than its factorization.

79959756800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10193 (or 10166 counting only the distinct ones).

The product of its (nonzero) digits is 42865200, while the sum is 65.

The spelling of 79959756800 in words is "seventy-nine billion, nine hundred fifty-nine million, seven hundred fifty-six thousand, eight hundred".