21824361589 has 2 divisors, whose sum is σ = 21824361590. Its totient is φ = 21824361588.

The previous prime is 21824361563. The next prime is 21824361613. The reversal of 21824361589 is 98516342812.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19925580964 + 1898780625 = 141158^2 + 43575^2 .

It is a cyclic number.

It is not a de Polignac number, because 21824361589 - 2⁵ = 21824361557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21824362589) 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, 10912180794 + 10912180795.

It is an arithmetic number, because the mean of its divisors is an integer number (10912180795).

Almost surely, 2^21824361589 is an apocalyptic number.

It is an amenable number.

21824361589 is a deficient number, since it is larger than the sum of its proper divisors (1).

21824361589 is an equidigital number, since it uses as much as digits as its factorization.

21824361589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 829440, while the sum is 49.

The spelling of 21824361589 in words is "twenty-one billion, eight hundred twenty-four million, three hundred sixty-one thousand, five hundred eighty-nine".