117855889786 has 24 divisors (see below), whose sum is σ = 179970616800. Its totient is φ = 57884183976.

The previous prime is 117855889759. The next prime is 117855889843. The reversal of 117855889786 is 687988558711.

117855889786 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10068165 + ... + 10079863.

It is an arithmetic number, because the mean of its divisors is an integer number (7498775700).

Almost surely, 2^117855889786 is an apocalyptic number.

117855889786 is a deficient number, since it is larger than the sum of its proper divisors (62114727014).

117855889786 is a wasteful number, since it uses less digits than its factorization.

117855889786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13266 (or 13207 counting only the distinct ones).

The product of its digits is 270950400, while the sum is 73.

The spelling of 117855889786 in words is "one hundred seventeen billion, eight hundred fifty-five million, eight hundred eighty-nine thousand, seven hundred eighty-six".