12744344117 has 8 divisors (see below), whose sum is σ = 13572014616. Its totient is φ = 11925340672.

The previous prime is 12744344113. The next prime is 12744344141. The reversal of 12744344117 is 71144344721.

It can be written as a sum of positive squares in 4 ways, for example, as 9039065476 + 3705278641 = 95074^2 + 60871^2 .

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 12744344117 - 2² = 12744344113 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 (12744344111) 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, 2163728 + ... + 2169609.

It is an arithmetic number, because the mean of its divisors is an integer number (1696501827).

Almost surely, 2^12744344117 is an apocalyptic number.

12744344117 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12744344117 is a deficient number, since it is larger than the sum of its proper divisors (827670499).

12744344117 is a wasteful number, since it uses less digits than its factorization.

12744344117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4333527.

The product of its digits is 75264, while the sum is 38.

Adding to 12744344117 its reverse (71144344721), we get a palindrome (83888688838).

The spelling of 12744344117 in words is "twelve billion, seven hundred forty-four million, three hundred forty-four thousand, one hundred seventeen".