117604231987 has 16 divisors (see below), whose sum is σ = 129269486304. Its totient is φ = 106101760000.

The previous prime is 117604231957. The next prime is 117604232029. The reversal of 117604231987 is 789132406711.

It is a cyclic number.

It is not a de Polignac number, because 117604231987 - 2¹⁹ = 117603707699 is a prime.

It is a super-2 number, since 2×117604231987² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 117604231987.

It is not an unprimeable number, because it can be changed into a prime (117604231907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6381987 + ... + 6400387.

It is an arithmetic number, because the mean of its divisors is an integer number (8079342894).

Almost surely, 2^117604231987 is an apocalyptic number.

117604231987 is a deficient number, since it is larger than the sum of its proper divisors (11665254317).

117604231987 is a wasteful number, since it uses less digits than its factorization.

117604231987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22790.

The product of its (nonzero) digits is 508032, while the sum is 49.

The spelling of 117604231987 in words is "one hundred seventeen billion, six hundred four million, two hundred thirty-one thousand, nine hundred eighty-seven".