12944184432887 has 2 divisors, whose sum is σ = 12944184432888. Its totient is φ = 12944184432886.

The previous prime is 12944184432791. The next prime is 12944184432911. The reversal of 12944184432887 is 78823448144921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12944184432887 - 2⁸ = 12944184432631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12944184432287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6472092216443 + 6472092216444.

It is an arithmetic number, because the mean of its divisors is an integer number (6472092216444).

Almost surely, 2^{12944184432887} is an apocalyptic number.

12944184432887 is a deficient number, since it is larger than the sum of its proper divisors (1).

12944184432887 is an equidigital number, since it uses as much as digits as its factorization.

12944184432887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 99090432, while the sum is 65.

The spelling of 12944184432887 in words is "twelve trillion, nine hundred forty-four billion, one hundred eighty-four million, four hundred thirty-two thousand, eight hundred eighty-seven".