79920072000 has 336 divisors, whose sum is σ = 287819860224. Its totient is φ = 21168000000.

The previous prime is 79920071983. The next prime is 79920072031. The reversal of 79920072000 is 27002997.

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

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, 10868325 + ... + 10875675.

Almost surely, 2^79920072000 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 79920072000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143909930112).

79920072000 is an abundant number, since it is smaller than the sum of its proper divisors (207899788224).

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

79920072000 is a wasteful number, since it uses less digits than its factorization.

79920072000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7535 (or 7512 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

Adding to 79920072000 its reverse (27002997), we get a palindrome (79947074997).

The spelling of 79920072000 in words is "seventy-nine billion, nine hundred twenty million, seventy-two thousand".