18630227604 has 24 divisors (see below), whose sum is σ = 44872807168. Its totient is φ = 6009750720.

The previous prime is 18630227593. The next prime is 18630227611. The reversal of 18630227604 is 40672203681.

It is a happy number.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25040257 + ... + 25041000.

Almost surely, 2^18630227604 is an apocalyptic number.

It is an amenable number.

18630227604 is an abundant number, since it is smaller than the sum of its proper divisors (26242579564).

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

18630227604 is a wasteful number, since it uses less digits than its factorization.

18630227604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50081295 (or 50081293 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 18630227604 in words is "eighteen billion, six hundred thirty million, two hundred twenty-seven thousand, six hundred four".