18713006808 has 32 divisors (see below), whose sum is σ = 46787521200. Its totient is φ = 6237001728.

The previous prime is 18713006777. The next prime is 18713006821. The reversal of 18713006808 is 80860031781.

It is a self number, because there is not a number n which added to its sum of digits gives 18713006808.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221160 + ... + 293832.

Almost surely, 2^18713006808 is an apocalyptic number.

It is an amenable number.

18713006808 is an abundant number, since it is smaller than the sum of its proper divisors (28074514392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18713006808 is a wasteful number, since it uses less digits than its factorization.

18713006808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83411 (or 83407 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 42.

The spelling of 18713006808 in words is "eighteen billion, seven hundred thirteen million, six thousand, eight hundred eight".