18640103682 has 48 divisors (see below), whose sum is σ = 38675318976. Its totient is φ = 5984856000.

The previous prime is 18640103639. The next prime is 18640103749. The reversal of 18640103682 is 28630104681.

It is a self number, because there is not a number n which added to its sum of digits gives 18640103682.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2260507 + ... + 2268737.

It is an arithmetic number, because the mean of its divisors is an integer number (805735812).

Almost surely, 2^18640103682 is an apocalyptic number.

18640103682 is an abundant number, since it is smaller than the sum of its proper divisors (20035215294).

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

18640103682 is a wasteful number, since it uses less digits than its factorization.

18640103682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8475 (or 8374 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

Subtracting 18640103682 from its reverse (28630104681), we obtain a palindrome (9990000999).

The spelling of 18640103682 in words is "eighteen billion, six hundred forty million, one hundred three thousand, six hundred eighty-two".