18090080000 has 90 divisors (see below), whose sum is σ = 45122824824. Its totient is φ = 7235968000.

The previous prime is 18090079951. The next prime is 18090080009. The reversal of 18090080000 is 8009081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18090080009) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 103469 + ... + 216531.

Almost surely, 2^18090080000 is an apocalyptic number.

18090080000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18090080000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22561412412).

18090080000 is an abundant number, since it is smaller than the sum of its proper divisors (27032744824).

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

18090080000 is an frugal number, since it uses more digits than its factorization.

18090080000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113099 (or 113070 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 26.

Adding to 18090080000 its reverse (8009081), we get a palindrome (18098089081).

The spelling of 18090080000 in words is "eighteen billion, ninety million, eighty thousand".