18920930000 has 100 divisors (see below), whose sum is σ = 52353866400. Its totient is φ = 6487152000.

The previous prime is 18920929981. The next prime is 18920930071. The reversal of 18920930000 is 3902981.

It is a tau number, because it is divible by the number of its divisors (100).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 65150 + ... + 205149.

It is an arithmetic number, because the mean of its divisors is an integer number (523538664).

Almost surely, 2^18920930000 is an apocalyptic number.

18920930000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18920930000 is an abundant number, since it is smaller than the sum of its proper divisors (33432936400).

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

18920930000 is an equidigital number, since it uses as much as digits as its factorization.

18920930000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270334 (or 270313 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 32.

The spelling of 18920930000 in words is "eighteen billion, nine hundred twenty million, nine hundred thirty thousand".