12734788529 has 2 divisors, whose sum is σ = 12734788530. Its totient is φ = 12734788528.

The previous prime is 12734788523. The next prime is 12734788567. The reversal of 12734788529 is 92588743721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12409960000 + 324828529 = 111400^2 + 18023^2 .

It is a cyclic number.

It is not a de Polignac number, because 12734788529 - 2⁸ = 12734788273 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (12734788523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6367394264 + 6367394265.

It is an arithmetic number, because the mean of its divisors is an integer number (6367394265).

Almost surely, 2^12734788529 is an apocalyptic number.

It is an amenable number.

12734788529 is a deficient number, since it is larger than the sum of its proper divisors (1).

12734788529 is an equidigital number, since it uses as much as digits as its factorization.

12734788529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6773760, while the sum is 56.

The spelling of 12734788529 in words is "twelve billion, seven hundred thirty-four million, seven hundred eighty-eight thousand, five hundred twenty-nine".