16487317863 has 6 divisors (see below), whose sum is σ = 23815014704. Its totient is φ = 10991545236.

The previous prime is 16487317813. The next prime is 16487317877. The reversal of 16487317863 is 36871378461.

16487317863 is a `hidden beast` number, since 1 + 6 + 487 + 31 + 78 + 63 = 666.

It is not a de Polignac number, because 16487317863 - 2⁶ = 16487317799 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 (16487317813) 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, 915962095 + ... + 915962112.

Almost surely, 2^16487317863 is an apocalyptic number.

16487317863 is a deficient number, since it is larger than the sum of its proper divisors (7327696841).

16487317863 is a wasteful number, since it uses less digits than its factorization.

16487317863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1831924213 (or 1831924210 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 54.

The spelling of 16487317863 in words is "sixteen billion, four hundred eighty-seven million, three hundred seventeen thousand, eight hundred sixty-three".