12895394443 has 2 divisors, whose sum is σ = 12895394444. Its totient is φ = 12895394442.

The previous prime is 12895394441. The next prime is 12895394513. The reversal of 12895394443 is 34449359821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12895394443 - 2¹ = 12895394441 is a prime.

Together with 12895394441, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12895394441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6447697221 + 6447697222.

It is an arithmetic number, because the mean of its divisors is an integer number (6447697222).

Almost surely, 2^12895394443 is an apocalyptic number.

12895394443 is a deficient number, since it is larger than the sum of its proper divisors (1).

12895394443 is an equidigital number, since it uses as much as digits as its factorization.

12895394443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3732480, while the sum is 52.

The spelling of 12895394443 in words is "twelve billion, eight hundred ninety-five million, three hundred ninety-four thousand, four hundred forty-three".