18360548840 has 64 divisors (see below), whose sum is σ = 41636160000. Its totient is φ = 7286572800.

The previous prime is 18360548821. The next prime is 18360548849. The reversal of 18360548840 is 4884506381.

It is not an unprimeable number, because it can be changed into a prime (18360548849) 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, 9409865 + ... + 9411815.

It is an arithmetic number, because the mean of its divisors is an integer number (650565000).

Almost surely, 2^18360548840 is an apocalyptic number.

18360548840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18360548840 is an abundant number, since it is smaller than the sum of its proper divisors (23275611160).

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

18360548840 is a wasteful number, since it uses less digits than its factorization.

18360548840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3690 (or 3686 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 47.

The spelling of 18360548840 in words is "eighteen billion, three hundred sixty million, five hundred forty-eight thousand, eight hundred forty".