22444544623 has 2 divisors, whose sum is σ = 22444544624. Its totient is φ = 22444544622.

The previous prime is 22444544621. The next prime is 22444544651. The reversal of 22444544623 is 32644544422.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22444544623 - 2¹ = 22444544621 is a prime.

Together with 22444544621, 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 (22444544621) 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, 11222272311 + 11222272312.

It is an arithmetic number, because the mean of its divisors is an integer number (11222272312).

Almost surely, 2^22444544623 is an apocalyptic number.

22444544623 is a deficient number, since it is larger than the sum of its proper divisors (1).

22444544623 is an equidigital number, since it uses as much as digits as its factorization.

22444544623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 737280, while the sum is 40.

The spelling of 22444544623 in words is "twenty-two billion, four hundred forty-four million, five hundred forty-four thousand, six hundred twenty-three".