13444373738 has 16 divisors (see below), whose sum is σ = 21355867080. Its totient is φ = 6325863936.

The previous prime is 13444373699. The next prime is 13444373749. The reversal of 13444373738 is 83737344431.

13444373738 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 11255724649 + 2188649089 = 106093^2 + 46783^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13444373692 and 13444373701.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 255908 + ... + 303936.

Almost surely, 2^13444373738 is an apocalyptic number.

13444373738 is a deficient number, since it is larger than the sum of its proper divisors (7911493342).

13444373738 is a wasteful number, since it uses less digits than its factorization.

13444373738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56281.

The product of its digits is 2032128, while the sum is 47.

The spelling of 13444373738 in words is "thirteen billion, four hundred forty-four million, three hundred seventy-three thousand, seven hundred thirty-eight".