18745857704 has 64 divisors (see below), whose sum is σ = 42554367360. Its totient is φ = 7557488640.

The previous prime is 18745857701. The next prime is 18745857731. The reversal of 18745857704 is 40775854781.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a self number, because there is not a number n which added to its sum of digits gives 18745857704.

It is not an unprimeable number, because it can be changed into a prime (18745857701) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2525759 + ... + 2533169.

It is an arithmetic number, because the mean of its divisors is an integer number (664911990).

Almost surely, 2^18745857704 is an apocalyptic number.

18745857704 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18745857704 is an abundant number, since it is smaller than the sum of its proper divisors (23808509656).

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

18745857704 is a wasteful number, since it uses less digits than its factorization.

18745857704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10098 (or 10094 counting only the distinct ones).

The product of its (nonzero) digits is 8780800, while the sum is 56.

The spelling of 18745857704 in words is "eighteen billion, seven hundred forty-five million, eight hundred fifty-seven thousand, seven hundred four".