9685009685 has 32 divisors (see below), whose sum is σ = 12726050400. Its totient is φ = 7032960000.

The previous prime is 9685009657. The next prime is 9685009693. The reversal of 9685009685 is 5869005869.

It can be written as a sum of positive squares in 16 ways, for example, as 802135684 + 8882874001 = 28322^2 + 94249^2 .

It is not a de Polignac number, because 9685009685 - 2²⁰ = 9683961109 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 9685009685.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 973235 + ... + 983135.

It is an arithmetic number, because the mean of its divisors is an integer number (397689075).

Almost surely, 2^9685009685 is an apocalyptic number.

It is an amenable number.

9685009685 is a deficient number, since it is larger than the sum of its proper divisors (3041040715).

9685009685 is a wasteful number, since it uses less digits than its factorization.

9685009685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10169.

The product of its (nonzero) digits is 4665600, while the sum is 56.

The square root of 9685009685 is about 98412.4467991727. The cubic root of 9685009685 is about 2131.5720638150.

It can be divided in two parts, 968500 and 9685, that multiplied together give a square (9379922500 = 96850²).

The spelling of 9685009685 in words is "nine billion, six hundred eighty-five million, nine thousand, six hundred eighty-five".