13826381944 has 16 divisors (see below), whose sum is σ = 25934069520. Its totient is φ = 6910630080.

The previous prime is 13826381941. The next prime is 13826381983. The reversal of 13826381944 is 44918362831.

It is a happy number.

13826381944 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×13826381944³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13826381941) 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, 297069 + ... + 340444.

It is an arithmetic number, because the mean of its divisors is an integer number (1620879345).

Almost surely, 2^13826381944 is an apocalyptic number.

It is an amenable number.

13826381944 is a deficient number, since it is larger than the sum of its proper divisors (12107687576).

13826381944 is a wasteful number, since it uses less digits than its factorization.

13826381944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640230 (or 640226 counting only the distinct ones).

The product of its digits is 995328, while the sum is 49.

The spelling of 13826381944 in words is "thirteen billion, eight hundred twenty-six million, three hundred eighty-one thousand, nine hundred forty-four".