79121135232000 has 704 divisors, whose sum is σ = 302513677689600. Its totient is φ = 20371392921600.

The previous prime is 79121135231989. The next prime is 79121135232023. The reversal of 79121135232000 is 23253112197.

It is a happy number.

79121135232000 is a `hidden beast` number, since 7 + 9 + 12 + 113 + 523 + 2 + 0 + 0 + 0 = 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 63 ways as a sum of consecutive naturals, for example, 99829279 + ... + 100618721.

Almost surely, 2^{79121135232000} 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 79121135232000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151256838844800).

79121135232000 is an abundant number, since it is smaller than the sum of its proper divisors (223392542457600).

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

79121135232000 is a wasteful number, since it uses less digits than its factorization.

79121135232000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789516 (or 789482 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

Adding to 79121135232000 its reverse (23253112197), we get a palindrome (79144388344197).

The spelling of 79121135232000 in words is "seventy-nine trillion, one hundred twenty-one billion, one hundred thirty-five million, two hundred thirty-two thousand".