12144443977 has 2 divisors, whose sum is σ = 12144443978. Its totient is φ = 12144443976.

The previous prime is 12144443951. The next prime is 12144444007. The reversal of 12144443977 is 77934444121.

12144443977 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., 8581428496 + 3563015481 = 92636^2 + 59691^2 .

It is an emirp because it is prime and its reverse (77934444121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12144443977 - 2²³ = 12136055369 is a prime.

It is not a weakly prime, because it can be changed into another prime (12144443917) 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, 6072221988 + 6072221989.

It is an arithmetic number, because the mean of its divisors is an integer number (6072221989).

Almost surely, 2^12144443977 is an apocalyptic number.

It is an amenable number.

12144443977 is a deficient number, since it is larger than the sum of its proper divisors (1).

12144443977 is an equidigital number, since it uses as much as digits as its factorization.

12144443977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 677376, while the sum is 46.

The spelling of 12144443977 in words is "twelve billion, one hundred forty-four million, four hundred forty-three thousand, nine hundred seventy-seven".