22385595809 has 2 divisors, whose sum is σ = 22385595810. Its totient is φ = 22385595808.

The previous prime is 22385595763. The next prime is 22385595823. The reversal of 22385595809 is 90859558322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14267585809 + 8118010000 = 119447^2 + 90100^2 .

It is a cyclic number.

It is not a de Polignac number, because 22385595809 - 2⁸ = 22385595553 is a prime.

It is a super-2 number, since 2×22385595809² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22385595839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11192797904 + 11192797905.

It is an arithmetic number, because the mean of its divisors is an integer number (11192797905).

Almost surely, 2^22385595809 is an apocalyptic number.

It is an amenable number.

22385595809 is a deficient number, since it is larger than the sum of its proper divisors (1).

22385595809 is an equidigital number, since it uses as much as digits as its factorization.

22385595809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776000, while the sum is 56.

The spelling of 22385595809 in words is "twenty-two billion, three hundred eighty-five million, five hundred ninety-five thousand, eight hundred nine".