12734400017 has 2 divisors, whose sum is σ = 12734400018. Its totient is φ = 12734400016.

The previous prime is 12734399987. The next prime is 12734400031. The reversal of 12734400017 is 71000443721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12733091281 + 1308736 = 112841^2 + 1144^2 .

It is a cyclic number.

It is not a de Polignac number, because 12734400017 - 2⁸ = 12734399761 is a prime.

It is not a weakly prime, because it can be changed into another prime (12734408017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6367200008 + 6367200009.

It is an arithmetic number, because the mean of its divisors is an integer number (6367200009).

Almost surely, 2^12734400017 is an apocalyptic number.

It is an amenable number.

12734400017 is a deficient number, since it is larger than the sum of its proper divisors (1).

12734400017 is an equidigital number, since it uses as much as digits as its factorization.

12734400017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704, while the sum is 29.

Adding to 12734400017 its reverse (71000443721), we get a palindrome (83734843738).

The spelling of 12734400017 in words is "twelve billion, seven hundred thirty-four million, four hundred thousand, seventeen".