18145909200 has 60 divisors (see below), whose sum is σ = 58127399648. Its totient is φ = 4838908800.

The previous prime is 18145909183. The next prime is 18145909211. The reversal of 18145909200 is 290954181.

It is a tau number, because it is divible by the number of its divisors (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7559596 + ... + 7561995.

Almost surely, 2^18145909200 is an apocalyptic number.

18145909200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18145909200 is an abundant number, since it is smaller than the sum of its proper divisors (39981490448).

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

18145909200 is a wasteful number, since it uses less digits than its factorization.

18145909200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15121612 (or 15121601 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 39.

The spelling of 18145909200 in words is "eighteen billion, one hundred forty-five million, nine hundred nine thousand, two hundred".