18745433124 has 48 divisors (see below), whose sum is σ = 48035937600. Its totient is φ = 5642304640.

The previous prime is 18745433107. The next prime is 18745433137. The reversal of 18745433124 is 42133454781.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 456879 + ... + 496214.

It is an arithmetic number, because the mean of its divisors is an integer number (1000748700).

Almost surely, 2^18745433124 is an apocalyptic number.

It is an amenable number.

18745433124 is an abundant number, since it is smaller than the sum of its proper divisors (29290504476).

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

18745433124 is a wasteful number, since it uses less digits than its factorization.

18745433124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953260 (or 953258 counting only the distinct ones).

The product of its digits is 322560, while the sum is 42.

The spelling of 18745433124 in words is "eighteen billion, seven hundred forty-five million, four hundred thirty-three thousand, one hundred twenty-four".