18486668682 has 24 divisors (see below), whose sum is σ = 40076932896. Its totient is φ = 6158763816.

The previous prime is 18486668597. The next prime is 18486668687. The reversal of 18486668682 is 28686668481.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (18486668687) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 255198 + ... + 319529.

It is an arithmetic number, because the mean of its divisors is an integer number (1669872204).

Almost surely, 2^18486668682 is an apocalyptic number.

18486668682 is an abundant number, since it is smaller than the sum of its proper divisors (21590264214).

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

18486668682 is a wasteful number, since it uses less digits than its factorization.

18486668682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576522 (or 576519 counting only the distinct ones).

The product of its digits is 42467328, while the sum is 63.

The spelling of 18486668682 in words is "eighteen billion, four hundred eighty-six million, six hundred sixty-eight thousand, six hundred eighty-two".