79136772894 has 24 divisors (see below), whose sum is σ = 171502387992. Its totient is φ = 26372865840.

The previous prime is 79136772887. The next prime is 79136772907. The reversal of 79136772894 is 49827763197.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 423972 + ... + 581399.

It is an arithmetic number, because the mean of its divisors is an integer number (7145932833).

Almost surely, 2^79136772894 is an apocalyptic number.

79136772894 is an abundant number, since it is smaller than the sum of its proper divisors (92365615098).

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

79136772894 is a wasteful number, since it uses less digits than its factorization.

79136772894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009752 (or 1009749 counting only the distinct ones).

The product of its digits is 32006016, while the sum is 63.

The spelling of 79136772894 in words is "seventy-nine billion, one hundred thirty-six million, seven hundred seventy-two thousand, eight hundred ninety-four".