18959518180 has 48 divisors (see below), whose sum is σ = 39975901056. Its totient is φ = 7553226240.

The previous prime is 18959518169. The next prime is 18959518187. The reversal of 18959518180 is 8181595981.

It is not an unprimeable number, because it can be changed into a prime (18959518187) 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, 5891932 + ... + 5895148.

It is an arithmetic number, because the mean of its divisors is an integer number (832831272).

Almost surely, 2^18959518180 is an apocalyptic number.

18959518180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18959518180 is an abundant number, since it is smaller than the sum of its proper divisors (21016382876).

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

18959518180 is a wasteful number, since it uses less digits than its factorization.

18959518180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4324 (or 4322 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 55.

The spelling of 18959518180 in words is "eighteen billion, nine hundred fifty-nine million, five hundred eighteen thousand, one hundred eighty".