9646475985 has 12 divisors (see below), whose sum is σ = 16720558452. Its totient is φ = 5144787168.

The previous prime is 9646475983. The next prime is 9646476001. The reversal of 9646475985 is 5895746469.

9646475985 is a `hidden beast` number, since 96 + 464 + 7 + 5 + 9 + 85 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1239603264 + 8406872721 = 35208^2 + 91689^2 .

It is not a de Polignac number, because 9646475985 - 2¹ = 9646475983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9646475983) 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 in 11 ways as a sum of consecutive naturals, for example, 107183022 + ... + 107183111.

It is an arithmetic number, because the mean of its divisors is an integer number (1393379871).

Almost surely, 2^9646475985 is an apocalyptic number.

It is an amenable number.

9646475985 is a deficient number, since it is larger than the sum of its proper divisors (7074082467).

9646475985 is a wasteful number, since it uses less digits than its factorization.

9646475985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214366144 (or 214366141 counting only the distinct ones).

The product of its digits is 65318400, while the sum is 63.

The square root of 9646475985 is about 98216.4751200123. The cubic root of 9646475985 is about 2128.7413479045.

The spelling of 9646475985 in words is "nine billion, six hundred forty-six million, four hundred seventy-five thousand, nine hundred eighty-five".