18751742004 has 12 divisors (see below), whose sum is σ = 43754064704. Its totient is φ = 6250580664.

The previous prime is 18751742003. The next prime is 18751742021. The reversal of 18751742004 is 40024715781.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18751742003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 781322572 + ... + 781322595.

Almost surely, 2^18751742004 is an apocalyptic number.

It is an amenable number.

18751742004 is an abundant number, since it is smaller than the sum of its proper divisors (25002322700).

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

18751742004 is a wasteful number, since it uses less digits than its factorization.

18751742004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1562645174 (or 1562645172 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 39.

The spelling of 18751742004 in words is "eighteen billion, seven hundred fifty-one million, seven hundred forty-two thousand, four".