13044811909 has 8 divisors (see below), whose sum is σ = 13954548888. Its totient is φ = 12150896640.

The previous prime is 13044811889. The next prime is 13044811919. The reversal of 13044811909 is 90911844031.

It can be written as a sum of positive squares in 4 ways, for example, as 7550741025 + 5494070884 = 86895^2 + 74122^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13044811909 - 2¹¹ = 13044809861 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 (13044811919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3953722 + ... + 3957019.

It is an arithmetic number, because the mean of its divisors is an integer number (1744318611).

Almost surely, 2^13044811909 is an apocalyptic number.

It is an amenable number.

13044811909 is a deficient number, since it is larger than the sum of its proper divisors (909736979).

13044811909 is an equidigital number, since it uses as much as digits as its factorization.

13044811909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7910855.

The product of its (nonzero) digits is 31104, while the sum is 40.

The spelling of 13044811909 in words is "thirteen billion, forty-four million, eight hundred eleven thousand, nine hundred nine".