13444033999 has 6 divisors (see below), whose sum is σ = 14777326760. Its totient is φ = 12221848980.

The previous prime is 13444033987. The next prime is 13444034057. The reversal of 13444033999 is 99933044431.

It is a happy number.

It is not a de Polignac number, because 13444033999 - 2⁹ = 13444033487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13444031999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55553739 + ... + 55553980.

Almost surely, 2^13444033999 is an apocalyptic number.

13444033999 is a deficient number, since it is larger than the sum of its proper divisors (1333292761).

13444033999 is a wasteful number, since it uses less digits than its factorization.

13444033999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111107741 (or 111107730 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 49.

The spelling of 13444033999 in words is "thirteen billion, four hundred forty-four million, thirty-three thousand, nine hundred ninety-nine".