79721299756362 has 32 divisors (see below), whose sum is σ = 173938686497280. Its totient is φ = 24157788343920.

The previous prime is 79721299756283. The next prime is 79721299756367. The reversal of 79721299756362 is 26365799212797.

It is not an unprimeable number, because it can be changed into a prime (79721299756367) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4464339 + ... + 13393017.

It is an arithmetic number, because the mean of its divisors is an integer number (5435583953040).

Almost surely, 2^{79721299756362} is an apocalyptic number.

It is a pronic number, being equal to 8928678×8928679.

79721299756362 is an abundant number, since it is smaller than the sum of its proper divisors (94217386740918).

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

79721299756362 is a wasteful number, since it uses less digits than its factorization.

79721299756362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9063978.

The product of its digits is 1080203040, while the sum is 75.

The spelling of 79721299756362 in words is "seventy-nine trillion, seven hundred twenty-one billion, two hundred ninety-nine million, seven hundred fifty-six thousand, three hundred sixty-two".