18343330912 has 48 divisors (see below), whose sum is σ = 37312579584. Its totient is φ = 8867664000.

The previous prime is 18343330903. The next prime is 18343330933. The reversal of 18343330912 is 21903334381.

It is a happy number.

It is a super-3 number, since 3×18343330912³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1153737 + ... + 1169527.

It is an arithmetic number, because the mean of its divisors is an integer number (777345408).

Almost surely, 2^18343330912 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 18343330912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18656289792).

18343330912 is an abundant number, since it is smaller than the sum of its proper divisors (18969248672).

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

18343330912 is a wasteful number, since it uses less digits than its factorization.

18343330912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17003 (or 16995 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 37.

The spelling of 18343330912 in words is "eighteen billion, three hundred forty-three million, three hundred thirty thousand, nine hundred twelve".