22944247309 has 2 divisors, whose sum is σ = 22944247310. Its totient is φ = 22944247308.

The previous prime is 22944247307. The next prime is 22944247343. The reversal of 22944247309 is 90374244922.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22777450084 + 166797225 = 150922^2 + 12915^2 .

It is a cyclic number.

It is not a de Polignac number, because 22944247309 - 2¹ = 22944247307 is a prime.

Together with 22944247307, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22944247303) 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, 11472123654 + 11472123655.

It is an arithmetic number, because the mean of its divisors is an integer number (11472123655).

Almost surely, 2^22944247309 is an apocalyptic number.

It is an amenable number.

22944247309 is a deficient number, since it is larger than the sum of its proper divisors (1).

22944247309 is an equidigital number, since it uses as much as digits as its factorization.

22944247309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912, while the sum is 46.

The spelling of 22944247309 in words is "twenty-two billion, nine hundred forty-four million, two hundred forty-seven thousand, three hundred nine".