18232249308 has 288 divisors, whose sum is σ = 55358876160. Its totient is φ = 4566481920.

The previous prime is 18232249297. The next prime is 18232249327. The reversal of 18232249308 is 80394223281.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 18232249308.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 27582498 + ... + 27583158.

It is an arithmetic number, because the mean of its divisors is an integer number (192218320).

Almost surely, 2^18232249308 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18232249308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27679438080).

18232249308 is an abundant number, since it is smaller than the sum of its proper divisors (37126626852).

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

18232249308 is a wasteful number, since it uses less digits than its factorization.

18232249308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797 (or 782 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The spelling of 18232249308 in words is "eighteen billion, two hundred thirty-two million, two hundred forty-nine thousand, three hundred eight".