117989325087 has 4 divisors (see below), whose sum is σ = 157319100120. Its totient is φ = 78659550056.

The previous prime is 117989325053. The next prime is 117989325089. The reversal of 117989325087 is 780523989711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 780523989711 = 3 ⋅260174663237.

It is a cyclic number.

It is not a de Polignac number, because 117989325087 - 2⁶ = 117989325023 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117989325087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117989325089) 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, 19664887512 + ... + 19664887517.

It is an arithmetic number, because the mean of its divisors is an integer number (39329775030).

Almost surely, 2^117989325087 is an apocalyptic number.

117989325087 is a deficient number, since it is larger than the sum of its proper divisors (39329775033).

117989325087 is an equidigital number, since it uses as much as digits as its factorization.

117989325087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39329775032.

The product of its (nonzero) digits is 7620480, while the sum is 60.

The spelling of 117989325087 in words is "one hundred seventeen billion, nine hundred eighty-nine million, three hundred twenty-five thousand, eighty-seven".