79751966720 has 416 divisors, whose sum is σ = 214603675776. Its totient is φ = 28311552000.

The previous prime is 79751966711. The next prime is 79751966731. The reversal of 79751966720 is 2766915797.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 79751966720.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 528158645 + ... + 528158795.

Almost surely, 2^79751966720 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 79751966720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107301837888).

79751966720 is an abundant number, since it is smaller than the sum of its proper divisors (134851709056).

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

79751966720 is a wasteful number, since it uses less digits than its factorization.

79751966720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275 (or 253 counting only the distinct ones).

The product of its (nonzero) digits is 10001880, while the sum is 59.

The spelling of 79751966720 in words is "seventy-nine billion, seven hundred fifty-one million, nine hundred sixty-six thousand, seven hundred twenty".