22042424549 has 2 divisors, whose sum is σ = 22042424550. Its totient is φ = 22042424548.

The previous prime is 22042424513. The next prime is 22042424557. The reversal of 22042424549 is 94542424022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17470230625 + 4572193924 = 132175^2 + 67618^2 .

It is a cyclic number.

It is not a de Polignac number, because 22042424549 - 2⁸ = 22042424293 is a prime.

It is a super-3 number, since 3×22042424549³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22042414549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11021212274 + 11021212275.

It is an arithmetic number, because the mean of its divisors is an integer number (11021212275).

Almost surely, 2^22042424549 is an apocalyptic number.

It is an amenable number.

22042424549 is a deficient number, since it is larger than the sum of its proper divisors (1).

22042424549 is an equidigital number, since it uses as much as digits as its factorization.

22042424549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 184320, while the sum is 38.

The spelling of 22042424549 in words is "twenty-two billion, forty-two million, four hundred twenty-four thousand, five hundred forty-nine".