18984482900 has 72 divisors (see below), whose sum is σ = 43126448064. Its totient is φ = 7240147200.

The previous prime is 18984482899. The next prime is 18984482971. The reversal of 18984482900 is 928448981.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 706715 + ... + 733085.

Almost surely, 2^18984482900 is an apocalyptic number.

18984482900 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 18984482900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21563224032).

18984482900 is an abundant number, since it is smaller than the sum of its proper divisors (24141965164).

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

18984482900 is a wasteful number, since it uses less digits than its factorization.

18984482900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26721 (or 26714 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 53.

The spelling of 18984482900 in words is "eighteen billion, nine hundred eighty-four million, four hundred eighty-two thousand, nine hundred".