9573666889 has 2 divisors, whose sum is σ = 9573666890. Its totient is φ = 9573666888.

The previous prime is 9573666887. The next prime is 9573666913. The reversal of 9573666889 is 9886663759.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5125844025 + 4447822864 = 71595^2 + 66692^2 .

It is a cyclic number.

It is not a de Polignac number, because 9573666889 - 2¹ = 9573666887 is a prime.

Together with 9573666887, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (9573666887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4786833444 + 4786833445.

It is an arithmetic number, because the mean of its divisors is an integer number (4786833445).

Almost surely, 2^9573666889 is an apocalyptic number.

It is an amenable number.

9573666889 is a deficient number, since it is larger than the sum of its proper divisors (1).

9573666889 is an equidigital number, since it uses as much as digits as its factorization.

9573666889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 117573120, while the sum is 67.

The square root of 9573666889 is about 97845.1168377860. The cubic root of 9573666889 is about 2123.3720875799.

The spelling of 9573666889 in words is "nine billion, five hundred seventy-three million, six hundred sixty-six thousand, eight hundred eighty-nine".