9509489609 has 2 divisors, whose sum is σ = 9509489610. Its totient is φ = 9509489608.

The previous prime is 9509489593. The next prime is 9509489623. The reversal of 9509489609 is 9069849059.

9509489609 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7077520384 + 2431969225 = 84128^2 + 49315^2 .

It is a cyclic number.

It is not a de Polignac number, because 9509489609 - 2⁴ = 9509489593 is a prime.

It is not a weakly prime, because it can be changed into another prime (9509489009) 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, 4754744804 + 4754744805.

It is an arithmetic number, because the mean of its divisors is an integer number (4754744805).

Almost surely, 2^9509489609 is an apocalyptic number.

It is an amenable number.

9509489609 is a deficient number, since it is larger than the sum of its proper divisors (1).

9509489609 is an equidigital number, since it uses as much as digits as its factorization.

9509489609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6298560, while the sum is 59.

The square root of 9509489609 is about 97516.6119643212. The cubic root of 9509489609 is about 2118.6167558628.

The spelling of 9509489609 in words is "nine billion, five hundred nine million, four hundred eighty-nine thousand, six hundred nine".