518934108663 has 6 divisors (see below), whose sum is σ = 749571490304. Its totient is φ = 345956072436.

The previous prime is 518934108647. The next prime is 518934108677. The reversal of 518934108663 is 366801439815.

518934108663 is a `hidden beast` number, since 5 + 1 + 8 + 93 + 410 + 86 + 63 = 666.

It is not a de Polignac number, because 518934108663 - 2⁴ = 518934108647 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 (518934108643) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28829672695 + ... + 28829672712.

Almost surely, 2^518934108663 is an apocalyptic number.

518934108663 is a deficient number, since it is larger than the sum of its proper divisors (230637381641).

518934108663 is a wasteful number, since it uses less digits than its factorization.

518934108663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57659345413 (or 57659345410 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The spelling of 518934108663 in words is "five hundred eighteen billion, nine hundred thirty-four million, one hundred eight thousand, six hundred sixty-three".