12446642471 has 2 divisors, whose sum is σ = 12446642472. Its totient is φ = 12446642470.

The previous prime is 12446642399. The next prime is 12446642489. The reversal of 12446642471 is 17424664421.

12446642471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (17424664421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12446642471 - 2¹⁸ = 12446380327 is a prime.

It is a super-3 number, since 3×12446642471³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12446602471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6223321235 + 6223321236.

It is an arithmetic number, because the mean of its divisors is an integer number (6223321236).

Almost surely, 2^12446642471 is an apocalyptic number.

12446642471 is a deficient number, since it is larger than the sum of its proper divisors (1).

12446642471 is an equidigital number, since it uses as much as digits as its factorization.

12446642471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 258048, while the sum is 41.

The spelling of 12446642471 in words is "twelve billion, four hundred forty-six million, six hundred forty-two thousand, four hundred seventy-one".