12744903569 has 4 divisors (see below), whose sum is σ = 12773935680. Its totient is φ = 12715871460.

The previous prime is 12744903559. The next prime is 12744903571. The reversal of 12744903569 is 96530944721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96530944721 = 4021 ⋅24006701.

It is a cyclic number.

It is not a de Polignac number, because 12744903569 - 2¹⁶ = 12744838033 is a prime.

It is a super-2 number, since 2×12744903569² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12744903529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14515397 + ... + 14516274.

It is an arithmetic number, because the mean of its divisors is an integer number (3193483920).

Almost surely, 2^12744903569 is an apocalyptic number.

It is an amenable number.

12744903569 is a deficient number, since it is larger than the sum of its proper divisors (29032111).

12744903569 is an equidigital number, since it uses as much as digits as its factorization.

12744903569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29032110.

The product of its (nonzero) digits is 1632960, while the sum is 50.

The spelling of 12744903569 in words is "twelve billion, seven hundred forty-four million, nine hundred three thousand, five hundred sixty-nine".