18688883903708 has 12 divisors (see below), whose sum is σ = 32875005624720. Its totient is φ = 9296025153792.

The previous prime is 18688883903687. The next prime is 18688883903713. The reversal of 18688883903708 is 80730938888681.

It is a super-2 number, since 2×18688883903708² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 12104198648 + ... + 12104200191.

It is an arithmetic number, because the mean of its divisors is an integer number (2739583802060).

Almost surely, 2^{18688883903708} is an apocalyptic number.

It is an amenable number.

18688883903708 is a deficient number, since it is larger than the sum of its proper divisors (14186121721012).

18688883903708 is a wasteful number, since it uses less digits than its factorization.

18688883903708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24208399036 (or 24208399034 counting only the distinct ones).

The product of its (nonzero) digits is 891813888, while the sum is 77.

The spelling of 18688883903708 in words is "eighteen trillion, six hundred eighty-eight billion, eight hundred eighty-three million, nine hundred three thousand, seven hundred eight".