18714831688 has 32 divisors (see below), whose sum is σ = 41396866560. Its totient is φ = 7761911040.

The previous prime is 18714831671. The next prime is 18714831697. The reversal of 18714831688 is 88613841781.

It is a super-2 number, since 2×18714831688² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5388481 + ... + 5391952.

It is an arithmetic number, because the mean of its divisors is an integer number (1293652080).

Almost surely, 2^18714831688 is an apocalyptic number.

It is an amenable number.

18714831688 is an abundant number, since it is smaller than the sum of its proper divisors (22682034872).

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

18714831688 is a wasteful number, since it uses less digits than its factorization.

18714831688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10780477 (or 10780473 counting only the distinct ones).

The product of its digits is 2064384, while the sum is 55.

The spelling of 18714831688 in words is "eighteen billion, seven hundred fourteen million, eight hundred thirty-one thousand, six hundred eighty-eight".