22446438149 has 2 divisors, whose sum is σ = 22446438150. Its totient is φ = 22446438148.

The previous prime is 22446438137. The next prime is 22446438169. The reversal of 22446438149 is 94183464422.

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., 13048492900 + 9397945249 = 114230^2 + 96943^2 .

It is a cyclic number.

It is not a de Polignac number, because 22446438149 - 2¹² = 22446434053 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22446438109) 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, 11223219074 + 11223219075.

It is an arithmetic number, because the mean of its divisors is an integer number (11223219075).

Almost surely, 2^22446438149 is an apocalyptic number.

It is an amenable number.

22446438149 is a deficient number, since it is larger than the sum of its proper divisors (1).

22446438149 is an equidigital number, since it uses as much as digits as its factorization.

22446438149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1327104, while the sum is 47.

The spelling of 22446438149 in words is "twenty-two billion, four hundred forty-six million, four hundred thirty-eight thousand, one hundred forty-nine".