117706886451 has 32 divisors (see below), whose sum is σ = 217409548800. Its totient is φ = 61146433440.

The previous prime is 117706886389. The next prime is 117706886461. The reversal of 117706886451 is 154688607711.

117706886451 is a `hidden beast` number, since 117 + 70 + 6 + 8 + 8 + 6 + 451 = 666.

It is not a de Polignac number, because 117706886451 - 2¹¹ = 117706884403 is a prime.

It is a super-2 number, since 2×117706886451² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (117706886461) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28306456 + ... + 28310613.

It is an arithmetic number, because the mean of its divisors is an integer number (6794048400).

Almost surely, 2^117706886451 is an apocalyptic number.

117706886451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

117706886451 is a deficient number, since it is larger than the sum of its proper divisors (99702662349).

117706886451 is a wasteful number, since it uses less digits than its factorization.

117706886451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56617096 (or 56617090 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 54.

The spelling of 117706886451 in words is "one hundred seventeen billion, seven hundred six million, eight hundred eighty-six thousand, four hundred fifty-one".