18683934688 has 12 divisors (see below), whose sum is σ = 36783996480. Its totient is φ = 9341967328.

The previous prime is 18683934673. The next prime is 18683934721. The reversal of 18683934688 is 88643938681.

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 as a sum of consecutive naturals, namely, 291936448 + ... + 291936511.

It is an arithmetic number, because the mean of its divisors is an integer number (3065333040).

Almost surely, 2^18683934688 is an apocalyptic number.

It is an amenable number.

18683934688 is a deficient number, since it is larger than the sum of its proper divisors (18100061792).

18683934688 is an equidigital number, since it uses as much as digits as its factorization.

18683934688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583872969 (or 583872961 counting only the distinct ones).

The product of its digits is 47775744, while the sum is 64.

The spelling of 18683934688 in words is "eighteen billion, six hundred eighty-three million, nine hundred thirty-four thousand, six hundred eighty-eight".