18683220344 has 16 divisors (see below), whose sum is σ = 36554127120. Its totient is φ = 8935453120.

The previous prime is 18683220331. The next prime is 18683220349. The reversal of 18683220344 is 44302238681.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18683220349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50769437 + ... + 50769804.

It is an arithmetic number, because the mean of its divisors is an integer number (2284632945).

Almost surely, 2^18683220344 is an apocalyptic number.

It is an amenable number.

18683220344 is a deficient number, since it is larger than the sum of its proper divisors (17870906776).

18683220344 is a wasteful number, since it uses less digits than its factorization.

18683220344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101539270 (or 101539266 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 41.

The spelling of 18683220344 in words is "eighteen billion, six hundred eighty-three million, two hundred twenty thousand, three hundred forty-four".