18481197600 has 288 divisors, whose sum is σ = 67026960000. Its totient is φ = 4914570240.

The previous prime is 18481197569. The next prime is 18481197617. The reversal of 18481197600 is 679118481.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (288).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9481426 + ... + 9483374.

It is an arithmetic number, because the mean of its divisors is an integer number (232732500).

Almost surely, 2^18481197600 is an apocalyptic number.

18481197600 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 18481197600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33513480000).

18481197600 is an abundant number, since it is smaller than the sum of its proper divisors (48545762400).

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

18481197600 is a wasteful number, since it uses less digits than its factorization.

18481197600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2417 (or 2398 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 45.

The spelling of 18481197600 in words is "eighteen billion, four hundred eighty-one million, one hundred ninety-seven thousand, six hundred".