117810685605 has 16 divisors (see below), whose sum is σ = 188710591680. Its totient is φ = 62761200768.

The previous prime is 117810685529. The next prime is 117810685613. The reversal of 117810685605 is 506586018711.

It is a happy number.

It is not a de Polignac number, because 117810685605 - 2⁷ = 117810685477 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4434120 + ... + 4460609.

It is an arithmetic number, because the mean of its divisors is an integer number (11794411980).

Almost surely, 2^117810685605 is an apocalyptic number.

117810685605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117810685605 is a deficient number, since it is larger than the sum of its proper divisors (70899906075).

117810685605 is an equidigital number, since it uses as much as digits as its factorization.

117810685605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8895620.

The product of its (nonzero) digits is 403200, while the sum is 48.

The spelling of 117810685605 in words is "one hundred seventeen billion, eight hundred ten million, six hundred eighty-five thousand, six hundred five".