12446784313 has 2 divisors, whose sum is σ = 12446784314. Its totient is φ = 12446784312.

The previous prime is 12446784307. The next prime is 12446784341. The reversal of 12446784313 is 31348764421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9156958864 + 3289825449 = 95692^2 + 57357^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12446784313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12446784313.

It is not a weakly prime, because it can be changed into another prime (12446784113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6223392156 + 6223392157.

It is an arithmetic number, because the mean of its divisors is an integer number (6223392157).

Almost surely, 2^12446784313 is an apocalyptic number.

It is an amenable number.

12446784313 is a deficient number, since it is larger than the sum of its proper divisors (1).

12446784313 is an equidigital number, since it uses as much as digits as its factorization.

12446784313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 387072, while the sum is 43.

The spelling of 12446784313 in words is "twelve billion, four hundred forty-six million, seven hundred eighty-four thousand, three hundred thirteen".