79790412720 has 120 divisors (see below), whose sum is σ = 249265729008. Its totient is φ = 21113930240.

The previous prime is 79790412701. The next prime is 79790412731. The reversal of 79790412720 is 2721409797.

It is a tau number, because it is divible by the number of its divisors (120).

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 79790412720.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4108954 + ... + 4128326.

Almost surely, 2^79790412720 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 79790412720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124632864504).

79790412720 is an abundant number, since it is smaller than the sum of its proper divisors (169475316288).

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

79790412720 is a wasteful number, since it uses less digits than its factorization.

79790412720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19651 (or 19514 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 48.

The spelling of 79790412720 in words is "seventy-nine billion, seven hundred ninety million, four hundred twelve thousand, seven hundred twenty".