18681327635716 has 24 divisors (see below), whose sum is σ = 32708383678656. Its totient is φ = 9336075534240.

The previous prime is 18681327635687. The next prime is 18681327635717. The reversal of 18681327635716 is 61753672318681.

It is a hoax number, since the sum of its digits (64) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (18681327635717) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 354949795 + ... + 355002421.

It is an arithmetic number, because the mean of its divisors is an integer number (1362849319944).

Almost surely, 2^{18681327635716} is an apocalyptic number.

It is an amenable number.

18681327635716 is a deficient number, since it is larger than the sum of its proper divisors (14027056042940).

18681327635716 is a wasteful number, since it uses less digits than its factorization.

18681327635716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94539 (or 94537 counting only the distinct ones).

The product of its digits is 60963840, while the sum is 64.

The spelling of 18681327635716 in words is "eighteen trillion, six hundred eighty-one billion, three hundred twenty-seven million, six hundred thirty-five thousand, seven hundred sixteen".