79180432128 has 216 divisors, whose sum is σ = 269328690176. Its totient is φ = 21893068800.

The previous prime is 79180432099. The next prime is 79180432187. The reversal of 79180432128 is 82123408197.

It is a happy number.

79180432128 is a `hidden beast` number, since 7 + 91 + 8 + 0 + 432 + 128 = 666.

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, 420783 + ... + 579153.

Almost surely, 2^79180432128 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 79180432128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134664345088).

79180432128 is an abundant number, since it is smaller than the sum of its proper divisors (190148258048).

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

79180432128 is a wasteful number, since it uses less digits than its factorization.

79180432128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158431 (or 158414 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The spelling of 79180432128 in words is "seventy-nine billion, one hundred eighty million, four hundred thirty-two thousand, one hundred twenty-eight".