23389591609 has 2 divisors, whose sum is σ = 23389591610. Its totient is φ = 23389591608.

The previous prime is 23389591591. The next prime is 23389591633. The reversal of 23389591609 is 90619598332.

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., 22558538025 + 831053584 = 150195^2 + 28828^2 .

It is a cyclic number.

It is not a de Polignac number, because 23389591609 - 2³¹ = 21242107961 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23389591609.

It is not a weakly prime, because it can be changed into another prime (23389591409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11694795804 + 11694795805.

It is an arithmetic number, because the mean of its divisors is an integer number (11694795805).

Almost surely, 2^23389591609 is an apocalyptic number.

It is an amenable number.

23389591609 is a deficient number, since it is larger than the sum of its proper divisors (1).

23389591609 is an equidigital number, since it uses as much as digits as its factorization.

23389591609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3149280, while the sum is 55.

The spelling of 23389591609 in words is "twenty-three billion, three hundred eighty-nine million, five hundred ninety-one thousand, six hundred nine".