13644440044 has 6 divisors (see below), whose sum is σ = 23877770084. Its totient is φ = 6822220020.

The previous prime is 13644439997. The next prime is 13644440071. The reversal of 13644440044 is 44004444631.

13644440044 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-2 number, since 2×13644440044² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13644439991 and 13644440009.

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 as a sum of consecutive naturals, namely, 1705555002 + ... + 1705555009.

Almost surely, 2^13644440044 is an apocalyptic number.

It is an amenable number.

13644440044 is a deficient number, since it is larger than the sum of its proper divisors (10233330040).

13644440044 is a wasteful number, since it uses less digits than its factorization.

13644440044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3411110015 (or 3411110013 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 13644440044 its reverse (44004444631), we get a palindrome (57648884675).

The spelling of 13644440044 in words is "thirteen billion, six hundred forty-four million, four hundred forty thousand, forty-four".