12784448713 has 2 divisors, whose sum is σ = 12784448714. Its totient is φ = 12784448712.

The previous prime is 12784448707. The next prime is 12784448753. The reversal of 12784448713 is 31784448721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10921922064 + 1862526649 = 104508^2 + 43157^2 .

It is an emirp because it is prime and its reverse (31784448721) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12784448713 is a prime.

It is not a weakly prime, because it can be changed into another prime (12784448753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6392224356 + 6392224357.

It is an arithmetic number, because the mean of its divisors is an integer number (6392224357).

Almost surely, 2^12784448713 is an apocalyptic number.

It is an amenable number.

12784448713 is a deficient number, since it is larger than the sum of its proper divisors (1).

12784448713 is an equidigital number, since it uses as much as digits as its factorization.

12784448713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1204224, while the sum is 49.

The spelling of 12784448713 in words is "twelve billion, seven hundred eighty-four million, four hundred forty-eight thousand, seven hundred thirteen".