18873748064 has 24 divisors (see below), whose sum is σ = 37167448248. Its totient is φ = 9434396160.

The previous prime is 18873748051. The next prime is 18873748087. The reversal of 18873748064 is 46084737881.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49544 + ... + 200504.

It is an arithmetic number, because the mean of its divisors is an integer number (1548643677).

Almost surely, 2^18873748064 is an apocalyptic number.

It is an amenable number.

18873748064 is a deficient number, since it is larger than the sum of its proper divisors (18293700184).

18873748064 is a wasteful number, since it uses less digits than its factorization.

18873748064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154878 (or 154870 counting only the distinct ones).

The product of its (nonzero) digits is 7225344, while the sum is 56.

The spelling of 18873748064 in words is "eighteen billion, eight hundred seventy-three million, seven hundred forty-eight thousand, sixty-four".