117508568997889 has 4 divisors (see below), whose sum is σ = 117573455012400. Its totient is φ = 117443682983380.

The previous prime is 117508568997887. The next prime is 117508568997913. The reversal of 117508568997889 is 988799865805711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 117508568997889 - 2¹ = 117508568997887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117508568997887) 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, 32443004539 + ... + 32443008160.

It is an arithmetic number, because the mean of its divisors is an integer number (29393363753100).

Almost surely, 2^{117508568997889} is an apocalyptic number.

It is an amenable number.

117508568997889 is a deficient number, since it is larger than the sum of its proper divisors (64886014511).

117508568997889 is an equidigital number, since it uses as much as digits as its factorization.

117508568997889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64886014510.

The product of its (nonzero) digits is 21946982400, while the sum is 91.

The spelling of 117508568997889 in words is "one hundred seventeen trillion, five hundred eight billion, five hundred sixty-eight million, nine hundred ninety-seven thousand, eight hundred eighty-nine".