5177664816687 has 16 divisors (see below), whose sum is σ = 8367943138560. Its totient is φ = 3137978676600.

The previous prime is 5177664816647. The next prime is 5177664816721. The reversal of 5177664816687 is 7866184667715.

5177664816687 is a `hidden beast` number, since 5 + 1 + 7 + 7 + 6 + 6 + 481 + 66 + 87 = 666.

It is not a de Polignac number, because 5177664816687 - 2¹⁰ = 5177664815663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5177664816617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8716607139 + ... + 8716607732.

It is an arithmetic number, because the mean of its divisors is an integer number (522996446160).

Almost surely, 2^{5177664816687} is an apocalyptic number.

5177664816687 is a deficient number, since it is larger than the sum of its proper divisors (3190278321873).

5177664816687 is a wasteful number, since it uses less digits than its factorization.

5177664816687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17433214891 (or 17433214885 counting only the distinct ones).

The product of its digits is 568995840, while the sum is 72.

The spelling of 5177664816687 in words is "five trillion, one hundred seventy-seven billion, six hundred sixty-four million, eight hundred sixteen thousand, six hundred eighty-seven".