79712697194 has 16 divisors (see below), whose sum is σ = 128772135240. Its totient is φ = 36788912640.

The previous prime is 79712697149. The next prime is 79712697203. The reversal of 79712697194 is 49179621797.

It can be written as a sum of positive squares in 4 ways, for example, as 70589581969 + 9123115225 = 265687^2 + 95515^2 .

It is a super-3 number, since 3×79712697194³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 752162 + ... + 851570.

Almost surely, 2^79712697194 is an apocalyptic number.

79712697194 is a deficient number, since it is larger than the sum of its proper divisors (49059438046).

79712697194 is a wasteful number, since it uses less digits than its factorization.

79712697194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130265.

The product of its digits is 12002256, while the sum is 62.

The spelling of 79712697194 in words is "seventy-nine billion, seven hundred twelve million, six hundred ninety-seven thousand, one hundred ninety-four".