117635727879 has 12 divisors (see below), whose sum is σ = 170079960232. Its totient is φ = 78349194000.

The previous prime is 117635727851. The next prime is 117635727899. The reversal of 117635727879 is 978727536711.

117635727879 is a `hidden beast` number, since 1 + 1 + 7 + 6 + 357 + 278 + 7 + 9 = 666.

It is not a de Polignac number, because 117635727879 - 2⁷ = 117635727751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117635727899) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 6208732 + ... + 6227649.

Almost surely, 2^117635727879 is an apocalyptic number.

117635727879 is a deficient number, since it is larger than the sum of its proper divisors (52444232353).

117635727879 is a wasteful number, since it uses less digits than its factorization.

117635727879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12437438 (or 12437435 counting only the distinct ones).

The product of its digits is 31116960, while the sum is 63.

The spelling of 117635727879 in words is "one hundred seventeen billion, six hundred thirty-five million, seven hundred twenty-seven thousand, eight hundred seventy-nine".