79447131456 has 112 divisors (see below), whose sum is σ = 262072404480. Its totient is φ = 20635614720.

The previous prime is 79447131397. The next prime is 79447131481. The reversal of 79447131456 is 65413174497.

It is a tau number, because it is divible by the number of its divisors (112).

It is a junction number, because it is equal to n+sod(n) for n = 79447131399 and 79447131408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2672146 + ... + 2701713.

Almost surely, 2^79447131456 is an apocalyptic number.

It is an amenable number.

79447131456 is an abundant number, since it is smaller than the sum of its proper divisors (182625273024).

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

79447131456 is a wasteful number, since it uses less digits than its factorization.

79447131456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5373892 (or 5373882 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 51.

The spelling of 79447131456 in words is "seventy-nine billion, four hundred forty-seven million, one hundred thirty-one thousand, four hundred fifty-six".