13818944244 has 48 divisors (see below), whose sum is σ = 37131849216. Its totient is φ = 3918127200.

The previous prime is 13818944239. The next prime is 13818944263. The reversal of 13818944244 is 44244981831.

It is a junction number, because it is equal to n+sod(n) for n = 13818944193 and 13818944202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 616902 + ... + 638909.

It is an arithmetic number, because the mean of its divisors is an integer number (773580192).

Almost surely, 2^13818944244 is an apocalyptic number.

13818944244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13818944244 is an abundant number, since it is smaller than the sum of its proper divisors (23312904972).

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

13818944244 is a wasteful number, since it uses less digits than its factorization.

13818944244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255956 (or 1255954 counting only the distinct ones).

The product of its digits is 884736, while the sum is 48.

The spelling of 13818944244 in words is "thirteen billion, eight hundred eighteen million, nine hundred forty-four thousand, two hundred forty-four".