118138965959717 has 4 divisors (see below), whose sum is σ = 118139847339840. Its totient is φ = 118138084579596.

The previous prime is 118138965959713. The next prime is 118138965959741. The reversal of 118138965959717 is 717959569831811.

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 118138965959717 - 2² = 118138965959713 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118138965959713) 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, 440488973 + ... + 440757090.

It is an arithmetic number, because the mean of its divisors is an integer number (29534961834960).

Almost surely, 2^{118138965959717} is an apocalyptic number.

It is an amenable number.

118138965959717 is a deficient number, since it is larger than the sum of its proper divisors (881380123).

118138965959717 is an equidigital number, since it uses as much as digits as its factorization.

118138965959717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881380122.

The product of its digits is 1028764800, while the sum is 80.

The spelling of 118138965959717 in words is "one hundred eighteen trillion, one hundred thirty-eight billion, nine hundred sixty-five million, nine hundred fifty-nine thousand, seven hundred seventeen".