18013751880 has 64 divisors (see below), whose sum is σ = 54435767040. Its totient is φ = 4768599552.

The previous prime is 18013751863. The next prime is 18013751881. The reversal of 18013751880 is 8815731081.

It is not an unprimeable number, because it can be changed into a prime (18013751881) 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, 531424 + ... + 564303.

It is an arithmetic number, because the mean of its divisors is an integer number (850558860).

Almost surely, 2^18013751880 is an apocalyptic number.

18013751880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18013751880 is an abundant number, since it is smaller than the sum of its proper divisors (36422015160).

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

18013751880 is a wasteful number, since it uses less digits than its factorization.

18013751880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095878 (or 1095874 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 42.

The spelling of 18013751880 in words is "eighteen billion, thirteen million, seven hundred fifty-one thousand, eight hundred eighty".