79722040320 has 1232 divisors, whose sum is σ = 324758875392. Its totient is φ = 18632540160.

The previous prime is 79722040319. The next prime is 79722040331. The reversal of 79722040320 is 2304022797.

79722040320 is a `hidden beast` number, since 7 + 9 + 7 + 220 + 403 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 1504189414 + ... + 1504189466.

Almost surely, 2^79722040320 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 79722040320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162379437696).

79722040320 is an abundant number, since it is smaller than the sum of its proper divisors (245036835072).

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

79722040320 is a wasteful number, since it uses less digits than its factorization.

79722040320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The spelling of 79722040320 in words is "seventy-nine billion, seven hundred twenty-two million, forty thousand, three hundred twenty".