18002485600 has 144 divisors (see below), whose sum is σ = 48012302016. Its totient is φ = 6537024000.

The previous prime is 18002485561. The next prime is 18002485601. The reversal of 18002485600 is 658420081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18002485601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10303927 + ... + 10305673.

It is an arithmetic number, because the mean of its divisors is an integer number (333418764).

Almost surely, 2^18002485600 is an apocalyptic number.

18002485600 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 18002485600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24006151008).

18002485600 is an abundant number, since it is smaller than the sum of its proper divisors (30009816416).

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

18002485600 is a wasteful number, since it uses less digits than its factorization.

18002485600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2949 (or 2936 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

The spelling of 18002485600 in words is "eighteen billion, two million, four hundred eighty-five thousand, six hundred".