117890293705 has 16 divisors (see below), whose sum is σ = 141667286400. Its totient is φ = 94179697920.

The previous prime is 117890293667. The next prime is 117890293733. The reversal of 117890293705 is 507392098711.

It is not a de Polignac number, because 117890293705 - 2²¹ = 117888196553 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22795770 + ... + 22800940.

It is an arithmetic number, because the mean of its divisors is an integer number (8854205400).

Almost surely, 2^117890293705 is an apocalyptic number.

It is an amenable number.

117890293705 is a deficient number, since it is larger than the sum of its proper divisors (23776992695).

117890293705 is a wasteful number, since it uses less digits than its factorization.

117890293705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10704.

The product of its (nonzero) digits is 952560, while the sum is 52.

The spelling of 117890293705 in words is "one hundred seventeen billion, eight hundred ninety million, two hundred ninety-three thousand, seven hundred five".