79310077844 has 12 divisors (see below), whose sum is σ = 140549505600. Its totient is φ = 39153076248.

The previous prime is 79310077787. The next prime is 79310077853. The reversal of 79310077844 is 44877001397.

It is a junction number, because it is equal to n+sod(n) for n = 79310077792 and 79310077801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125490314 + ... + 125490945.

It is an arithmetic number, because the mean of its divisors is an integer number (11712458800).

Almost surely, 2^79310077844 is an apocalyptic number.

It is an amenable number.

79310077844 is a deficient number, since it is larger than the sum of its proper divisors (61239427756).

79310077844 is a wasteful number, since it uses less digits than its factorization.

79310077844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250981342 (or 250981340 counting only the distinct ones).

The product of its (nonzero) digits is 1185408, while the sum is 50.

The spelling of 79310077844 in words is "seventy-nine billion, three hundred ten million, seventy-seven thousand, eight hundred forty-four".