13444403312 has 40 divisors (see below), whose sum is σ = 26710071696. Its totient is φ = 6553552896.

The previous prime is 13444403293. The next prime is 13444403341. The reversal of 13444403312 is 21330444431.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39338 + ... + 168630.

Almost surely, 2^13444403312 is an apocalyptic number.

It is an amenable number.

13444403312 is a deficient number, since it is larger than the sum of its proper divisors (13265668384).

13444403312 is a wasteful number, since it uses less digits than its factorization.

13444403312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129465 (or 129459 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 13444403312 its reverse (21330444431), we get a palindrome (34774847743).

The spelling of 13444403312 in words is "thirteen billion, four hundred forty-four million, four hundred three thousand, three hundred twelve".