79373521920 has 528 divisors, whose sum is σ = 318964915584. Its totient is φ = 16490496000.

The previous prime is 79373521891. The next prime is 79373521979. The reversal of 79373521920 is 2912537397.

It is a tau number, because it is divible by the number of its divisors (528).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 79373521920.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13006870 + ... + 13012970.

Almost surely, 2^79373521920 is an apocalyptic number.

79373521920 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 79373521920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159482457792).

79373521920 is an abundant number, since it is smaller than the sum of its proper divisors (239591393664).

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

79373521920 is a wasteful number, since it uses less digits than its factorization.

79373521920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6158 (or 6129 counting only the distinct ones).

The product of its (nonzero) digits is 714420, while the sum is 48.

The spelling of 79373521920 in words is "seventy-nine billion, three hundred seventy-three million, five hundred twenty-one thousand, nine hundred twenty".