18746042460 has 48 divisors (see below), whose sum is σ = 55576505376. Its totient is φ = 4704888832.

The previous prime is 18746042423. The next prime is 18746042467. The reversal of 18746042460 is 6424064781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18746042467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9188217 + ... + 9190256.

It is an arithmetic number, because the mean of its divisors is an integer number (1157843862).

Almost surely, 2^18746042460 is an apocalyptic number.

18746042460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18746042460 is an abundant number, since it is smaller than the sum of its proper divisors (36830462916).

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

18746042460 is a wasteful number, since it uses less digits than its factorization.

18746042460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18378502 (or 18378500 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 42.

The spelling of 18746042460 in words is "eighteen billion, seven hundred forty-six million, forty-two thousand, four hundred sixty".