18353385324 has 120 divisors (see below), whose sum is σ = 49781239200. Its totient is φ = 5889300480.

The previous prime is 18353385319. The next prime is 18353385343. The reversal of 18353385324 is 42358335381.

18353385324 is a `hidden beast` number, since 1 + 8 + 3 + 533 + 85 + 32 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 18353385324.

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 39 ways as a sum of consecutive naturals, for example, 3370444 + ... + 3375884.

It is an arithmetic number, because the mean of its divisors is an integer number (414843660).

Almost surely, 2^18353385324 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 18353385324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24890619600).

18353385324 is an abundant number, since it is smaller than the sum of its proper divisors (31427853876).

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

18353385324 is a wasteful number, since it uses less digits than its factorization.

18353385324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5845 (or 5834 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 45.

The spelling of 18353385324 in words is "eighteen billion, three hundred fifty-three million, three hundred eighty-five thousand, three hundred twenty-four".