18489580200 has 864 divisors, whose sum is σ = 81064900800. Its totient is φ = 3687690240.

The previous prime is 18489580169. The next prime is 18489580217. The reversal of 18489580200 is 208598481.

It is a happy number.

18489580200 is a `hidden beast` number, since 1 + 8 + 48 + 9 + 580 + 20 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 40458372 + ... + 40458828.

Almost surely, 2^18489580200 is an apocalyptic number.

18489580200 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 18489580200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40532450400).

18489580200 is an abundant number, since it is smaller than the sum of its proper divisors (62575320600).

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

18489580200 is a wasteful number, since it uses less digits than its factorization.

18489580200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531 (or 506 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The spelling of 18489580200 in words is "eighteen billion, four hundred eighty-nine million, five hundred eighty thousand, two hundred".