18727044504 has 64 divisors (see below), whose sum is σ = 53570937600. Its totient is φ = 5344074624.

The previous prime is 18727044487. The next prime is 18727044517. The reversal of 18727044504 is 40544072781.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71542 + ... + 206330.

It is an arithmetic number, because the mean of its divisors is an integer number (837045900).

Almost surely, 2^18727044504 is an apocalyptic number.

18727044504 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18727044504 is an abundant number, since it is smaller than the sum of its proper divisors (34843893096).

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

18727044504 is a wasteful number, since it uses less digits than its factorization.

18727044504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135632 (or 135628 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 42.

The spelling of 18727044504 in words is "eighteen billion, seven hundred twenty-seven million, forty-four thousand, five hundred four".