11944433329 has 2 divisors, whose sum is σ = 11944433330. Its totient is φ = 11944433328.

The previous prime is 11944433327. The next prime is 11944433381. The reversal of 11944433329 is 92333444911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9065896225 + 2878537104 = 95215^2 + 53652^2 .

It is an emirp because it is prime and its reverse (92333444911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11944433329 - 2¹ = 11944433327 is a prime.

Together with 11944433327, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11944433327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5972216664 + 5972216665.

It is an arithmetic number, because the mean of its divisors is an integer number (5972216665).

Almost surely, 2^11944433329 is an apocalyptic number.

It is an amenable number.

11944433329 is a deficient number, since it is larger than the sum of its proper divisors (1).

11944433329 is an equidigital number, since it uses as much as digits as its factorization.

11944433329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 43.

The spelling of 11944433329 in words is "eleven billion, nine hundred forty-four million, four hundred thirty-three thousand, three hundred twenty-nine".