117189985998 has 32 divisors (see below), whose sum is σ = 237759494400. Its totient is φ = 38503745280.

The previous prime is 117189985949. The next prime is 117189986117. The reversal of 117189985998 is 899589981711.

It is a super-2 number, since 2×117189985998² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 330883 + ... + 586398.

It is an arithmetic number, because the mean of its divisors is an integer number (7429984200).

Almost surely, 2^117189985998 is an apocalyptic number.

117189985998 is an abundant number, since it is smaller than the sum of its proper divisors (120569508402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117189985998 is a wasteful number, since it uses less digits than its factorization.

117189985998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917592.

The product of its digits is 117573120, while the sum is 75.

The spelling of 117189985998 in words is "one hundred seventeen billion, one hundred eighty-nine million, nine hundred eighty-five thousand, nine hundred ninety-eight".