12144425617 has 2 divisors, whose sum is σ = 12144425618. Its totient is φ = 12144425616.

The previous prime is 12144425611. The next prime is 12144425633. The reversal of 12144425617 is 71652444121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7913703681 + 4230721936 = 88959^2 + 65044^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12144425617 is a prime.

It is not a weakly prime, because it can be changed into another prime (12144425611) 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 as a sum of consecutive naturals, namely, 6072212808 + 6072212809.

It is an arithmetic number, because the mean of its divisors is an integer number (6072212809).

Almost surely, 2^12144425617 is an apocalyptic number.

It is an amenable number.

12144425617 is a deficient number, since it is larger than the sum of its proper divisors (1).

12144425617 is an equidigital number, since it uses as much as digits as its factorization.

12144425617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 53760, while the sum is 37.

Adding to 12144425617 its reverse (71652444121), we get a palindrome (83796869738).

The spelling of 12144425617 in words is "twelve billion, one hundred forty-four million, four hundred twenty-five thousand, six hundred seventeen".