118931765517 has 12 divisors (see below), whose sum is σ = 176433310300. Its totient is φ = 77144928768.

The previous prime is 118931765501. The next prime is 118931765531. The reversal of 118931765517 is 715567139811.

118931765517 is a `hidden beast` number, since 1 + 1 + 89 + 3 + 1 + 7 + 6 + 551 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 57345401961 + 61586363556 = 239469^2 + 248166^2 .

It is not a de Polignac number, because 118931765517 - 2⁴ = 118931765501 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 (118931764517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178575892 + ... + 178576557.

Almost surely, 2^118931765517 is an apocalyptic number.

It is an amenable number.

118931765517 is a deficient number, since it is larger than the sum of its proper divisors (57501544783).

118931765517 is a wasteful number, since it uses less digits than its factorization.

118931765517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357152492 (or 357152489 counting only the distinct ones).

The product of its digits is 1587600, while the sum is 54.

The spelling of 118931765517 in words is "one hundred eighteen billion, nine hundred thirty-one million, seven hundred sixty-five thousand, five hundred seventeen".