79957404886 has 8 divisors (see below), whose sum is σ = 126991172520. Its totient is φ = 37627014048.

The previous prime is 79957404883. The next prime is 79957404889. The reversal of 79957404886 is 68840475997.

It is an interprime number because it is at equal distance from previous prime (79957404883) and next prime (79957404889).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×79957404886² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79957404883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1175844156 + ... + 1175844223.

It is an arithmetic number, because the mean of its divisors is an integer number (15873896565).

Almost surely, 2^79957404886 is an apocalyptic number.

79957404886 is a deficient number, since it is larger than the sum of its proper divisors (47033767634).

79957404886 is a wasteful number, since it uses less digits than its factorization.

79957404886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2351688398.

The product of its (nonzero) digits is 121927680, while the sum is 67.

The spelling of 79957404886 in words is "seventy-nine billion, nine hundred fifty-seven million, four hundred four thousand, eight hundred eighty-six".