12444666677 has 2 divisors, whose sum is σ = 12444666678. Its totient is φ = 12444666676.

The previous prime is 12444666667. The next prime is 12444666713. The reversal of 12444666677 is 77666644421.

12444666677 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7736785681 + 4707880996 = 87959^2 + 68614^2 .

It is a cyclic number.

It is not a de Polignac number, because 12444666677 - 2⁶ = 12444666613 is a prime.

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12444666667) 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, 6222333338 + 6222333339.

It is an arithmetic number, because the mean of its divisors is an integer number (6222333339).

Almost surely, 2^12444666677 is an apocalyptic number.

It is an amenable number.

12444666677 is a deficient number, since it is larger than the sum of its proper divisors (1).

12444666677 is an equidigital number, since it uses as much as digits as its factorization.

12444666677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8128512, while the sum is 53.

The spelling of 12444666677 in words is "twelve billion, four hundred forty-four million, six hundred sixty-six thousand, six hundred seventy-seven".