18501850100 has 18 divisors (see below), whose sum is σ = 40149014934. Its totient is φ = 7400740000.

The previous prime is 18501850097. The next prime is 18501850151. The reversal of 18501850100 is 105810581.

It can be written as a sum of positive squares in 3 ways, for example, as 17272336 + 18484577764 = 4156^2 + 135958^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 92509151 + ... + 92509350.

Almost surely, 2^18501850100 is an apocalyptic number.

18501850100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18501850100 is an abundant number, since it is smaller than the sum of its proper divisors (21647164834).

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

18501850100 is a wasteful number, since it uses less digits than its factorization.

18501850100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185018515 (or 185018508 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 29.

The spelling of 18501850100 in words is "eighteen billion, five hundred one million, eight hundred fifty thousand, one hundred".