79180513280 has 120 divisors (see below), whose sum is σ = 207305012880. Its totient is φ = 28792586240.

The previous prime is 79180513277. The next prime is 79180513319. The reversal of 79180513280 is 8231508197.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 857186 + ... + 945054.

It is an arithmetic number, because the mean of its divisors is an integer number (1727541774).

Almost surely, 2^79180513280 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 79180513280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103652506440).

79180513280 is an abundant number, since it is smaller than the sum of its proper divisors (128124499600).

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

79180513280 is an equidigital number, since it uses as much as digits as its factorization.

79180513280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87913 (or 87887 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 44.

The spelling of 79180513280 in words is "seventy-nine billion, one hundred eighty million, five hundred thirteen thousand, two hundred eighty".