13399925944 has 8 divisors (see below), whose sum is σ = 25124861160. Its totient is φ = 6699962968.

The previous prime is 13399925927. The next prime is 13399925947. The reversal of 13399925944 is 44952999331.

It is a happy number.

13399925944 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×13399925944² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13399925947) 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 as a sum of consecutive naturals, namely, 837495364 + ... + 837495379.

It is an arithmetic number, because the mean of its divisors is an integer number (3140607645).

Almost surely, 2^13399925944 is an apocalyptic number.

It is an amenable number.

13399925944 is a deficient number, since it is larger than the sum of its proper divisors (11724935216).

13399925944 is a wasteful number, since it uses less digits than its factorization.

13399925944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674990749 (or 1674990745 counting only the distinct ones).

The product of its digits is 9447840, while the sum is 58.

The spelling of 13399925944 in words is "thirteen billion, three hundred ninety-nine million, nine hundred twenty-five thousand, nine hundred forty-four".