117390175831 has 4 divisors (see below), whose sum is σ = 117391329432. Its totient is φ = 117389022232.

The previous prime is 117390175817. The next prime is 117390175841. The reversal of 117390175831 is 138571093711.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 117390175831 - 2²⁷ = 117255958103 is a prime.

It is a super-2 number, since 2×117390175831² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117390175841) 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, 407620 + ... + 633193.

It is an arithmetic number, because the mean of its divisors is an integer number (29347832358).

Almost surely, 2^117390175831 is an apocalyptic number.

117390175831 is a deficient number, since it is larger than the sum of its proper divisors (1153601).

117390175831 is a wasteful number, since it uses less digits than its factorization.

117390175831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153600.

The product of its (nonzero) digits is 158760, while the sum is 46.

The spelling of 117390175831 in words is "one hundred seventeen billion, three hundred ninety million, one hundred seventy-five thousand, eight hundred thirty-one".