18338383408918 has 8 divisors (see below), whose sum is σ = 27514877374512. Its totient is φ = 9166757617416.

The previous prime is 18338383408903. The next prime is 18338383408921. The reversal of 18338383408918 is 81980438383381.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1217034105 + ... + 1217049172.

It is an arithmetic number, because the mean of its divisors is an integer number (3439359671814).

Almost surely, 2^{18338383408918} is an apocalyptic number.

18338383408918 is a deficient number, since it is larger than the sum of its proper divisors (9176493965594).

18338383408918 is a wasteful number, since it uses less digits than its factorization.

18338383408918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2434087046.

The product of its (nonzero) digits is 95551488, while the sum is 67.

The spelling of 18338383408918 in words is "eighteen trillion, three hundred thirty-eight billion, three hundred eighty-three million, four hundred eight thousand, nine hundred eighteen".