117395317587818 has 32 divisors (see below), whose sum is σ = 176465899209600. Its totient is φ = 58573506573504.

The previous prime is 117395317587763. The next prime is 117395317587851. The reversal of 117395317587818 is 818785713593711.

It is a super-2 number, since 2×117395317587818² (a number of 29 digits) contains 22 as substring.

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, 11205045596 + ... + 11205056072.

It is an arithmetic number, because the mean of its divisors is an integer number (5514559350300).

Almost surely, 2^{117395317587818} is an apocalyptic number.

117395317587818 is a deficient number, since it is larger than the sum of its proper divisors (59070581621782).

117395317587818 is a wasteful number, since it uses less digits than its factorization.

117395317587818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16814.

The product of its digits is 355622400, while the sum is 74.

The spelling of 117395317587818 in words is "one hundred seventeen trillion, three hundred ninety-five billion, three hundred seventeen million, five hundred eighty-seven thousand, eight hundred eighteen".