12446516393 has 2 divisors, whose sum is σ = 12446516394. Its totient is φ = 12446516392.

The previous prime is 12446516389. The next prime is 12446516413. The reversal of 12446516393 is 39361564421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12229484569 + 217031824 = 110587^2 + 14732^2 .

It is a cyclic number.

It is not a de Polignac number, because 12446516393 - 2² = 12446516389 is a prime.

It is not a weakly prime, because it can be changed into another prime (12446516353) 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, 6223258196 + 6223258197.

It is an arithmetic number, because the mean of its divisors is an integer number (6223258197).

Almost surely, 2^12446516393 is an apocalyptic number.

It is an amenable number.

12446516393 is a deficient number, since it is larger than the sum of its proper divisors (1).

12446516393 is an equidigital number, since it uses as much as digits as its factorization.

12446516393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 466560, while the sum is 44.

The spelling of 12446516393 in words is "twelve billion, four hundred forty-six million, five hundred sixteen thousand, three hundred ninety-three".