79994099344320 has 672 divisors, whose sum is σ = 330671513367360. Its totient is φ = 18150889881600.

The previous prime is 79994099344279. The next prime is 79994099344339. The reversal of 79994099344320 is 2344399049997.

79994099344320 is a `hidden beast` number, since 7 + 9 + 9 + 94 + 0 + 9 + 93 + 443 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 57310720 + ... + 58689920.

Almost surely, 2^{79994099344320} is an apocalyptic number.

79994099344320 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 79994099344320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165335756683680).

79994099344320 is an abundant number, since it is smaller than the sum of its proper divisors (250677414023040).

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

79994099344320 is a wasteful number, since it uses less digits than its factorization.

79994099344320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379378 (or 1379355 counting only the distinct ones).

The product of its (nonzero) digits is 476171136, while the sum is 72.

The spelling of 79994099344320 in words is "seventy-nine trillion, nine hundred ninety-four billion, ninety-nine million, three hundred forty-four thousand, three hundred twenty".