18838673814 has 16 divisors (see below), whose sum is σ = 38208015360. Its totient is φ = 6191113320.

The previous prime is 18838673813. The next prime is 18838673921. The reversal of 18838673814 is 41837683881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18838673813) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 22110694 + ... + 22111545.

It is an arithmetic number, because the mean of its divisors is an integer number (2388000960).

Almost surely, 2^18838673814 is an apocalyptic number.

18838673814 is an abundant number, since it is smaller than the sum of its proper divisors (19369341546).

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

18838673814 is a wasteful number, since it uses less digits than its factorization.

18838673814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44222315.

The product of its digits is 6193152, while the sum is 57.

The spelling of 18838673814 in words is "eighteen billion, eight hundred thirty-eight million, six hundred seventy-three thousand, eight hundred fourteen".