9664481589 has 32 divisors (see below), whose sum is σ = 15812775936. Its totient is φ = 5124483840.

The previous prime is 9664481579. The next prime is 9664481597. The reversal of 9664481589 is 9851844669.

It is not a de Polignac number, because 9664481589 - 2¹¹ = 9664479541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9664481569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 165297 + ... + 215990.

It is an arithmetic number, because the mean of its divisors is an integer number (494149248).

Almost surely, 2^9664481589 is an apocalyptic number.

It is an amenable number.

9664481589 is a deficient number, since it is larger than the sum of its proper divisors (6148294347).

9664481589 is a wasteful number, since it uses less digits than its factorization.

9664481589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381385.

The product of its digits is 14929920, while the sum is 60.

The square root of 9664481589 is about 98308.0952363538. The cubic root of 9664481589 is about 2130.0649901923.

The spelling of 9664481589 in words is "nine billion, six hundred sixty-four million, four hundred eighty-one thousand, five hundred eighty-nine".