79638848694 has 48 divisors (see below), whose sum is σ = 173757742080. Its totient is φ = 26360737200.

The previous prime is 79638848687. The next prime is 79638848701. The reversal of 79638848694 is 49684883697.

79638848694 is a `hidden beast` number, since 7 + 9 + 63 + 88 + 486 + 9 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (79638848687) and next prime (79638848701).

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 23 ways as a sum of consecutive naturals, for example, 14693517 + ... + 14698935.

It is an arithmetic number, because the mean of its divisors is an integer number (3619952960).

Almost surely, 2^79638848694 is an apocalyptic number.

79638848694 is an abundant number, since it is smaller than the sum of its proper divisors (94118893386).

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

79638848694 is a wasteful number, since it uses less digits than its factorization.

79638848694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10985 (or 10982 counting only the distinct ones).

The product of its digits is 501645312, while the sum is 72.

The spelling of 79638848694 in words is "seventy-nine billion, six hundred thirty-eight million, eight hundred forty-eight thousand, six hundred ninety-four".