18098320900 has 81 divisors (see below), whose sum is σ = 43203560533. Its totient is φ = 6575826400.

The previous prime is 18098320883. The next prime is 18098320907. The reversal of 18098320900 is 902389081.

The square root of 18098320900 is 134530.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 6515395524 + 11582925376 = 80718^2 + 107624^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18098320907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 14797689 + ... + 14798911.

Almost surely, 2^18098320900 is an apocalyptic number.

18098320900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18098320900 is the 134530-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18098320900

18098320900 is an abundant number, since it is smaller than the sum of its proper divisors (25105239633).

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

18098320900 is a wasteful number, since it uses less digits than its factorization.

18098320900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2482 (or 1241 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 40.

The spelling of 18098320900 in words is "eighteen billion, ninety-eight million, three hundred twenty thousand, nine hundred".