79128208032 has 144 divisors (see below), whose sum is σ = 221868370080. Its totient is φ = 24685899264.

The previous prime is 79128207997. The next prime is 79128208037. The reversal of 79128208032 is 23080282197.

It is a happy number.

It is a super-2 number, since 2×79128208032² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (79128208037) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2862694 + ... + 2890202.

It is an arithmetic number, because the mean of its divisors is an integer number (1540752570).

Almost surely, 2^79128208032 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 79128208032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110934185040).

79128208032 is an abundant number, since it is smaller than the sum of its proper divisors (142740162048).

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

79128208032 is a wasteful number, since it uses less digits than its factorization.

79128208032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27643 (or 27616 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The spelling of 79128208032 in words is "seventy-nine billion, one hundred twenty-eight million, two hundred eight thousand, thirty-two".