79126146816 has 72 divisors (see below), whose sum is σ = 211472567040. Its totient is φ = 26264964096.

The previous prime is 79126146719. The next prime is 79126146919. The reversal of 79126146816 is 61864162197.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31990 + ... + 399093.

Almost surely, 2^79126146816 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 79126146816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105736283520).

79126146816 is an abundant number, since it is smaller than the sum of its proper divisors (132346420224).

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

79126146816 is a wasteful number, since it uses less digits than its factorization.

79126146816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431341 (or 431327 counting only the distinct ones).

The product of its digits is 870912, while the sum is 51.

The spelling of 79126146816 in words is "seventy-nine billion, one hundred twenty-six million, one hundred forty-six thousand, eight hundred sixteen".