9685906908209 has 8 divisors (see below), whose sum is σ = 11069627230080. Its totient is φ = 8302191420096.

The previous prime is 9685906908203. The next prime is 9685906908343. The reversal of 9685906908209 is 9028096095869.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9685906908209 - 2⁸ = 9685906907953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9685906908203) 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 7 ways as a sum of consecutive naturals, for example, 5778857 + ... + 7264089.

It is an arithmetic number, because the mean of its divisors is an integer number (1383703403760).

Almost surely, 2^{9685906908209} is an apocalyptic number.

It is an amenable number.

9685906908209 is a deficient number, since it is larger than the sum of its proper divisors (1383720321871).

9685906908209 is a wasteful number, since it uses less digits than its factorization.

9685906908209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2416879.

The product of its (nonzero) digits is 151165440, while the sum is 71.

The spelling of 9685906908209 in words is "nine trillion, six hundred eighty-five billion, nine hundred six million, nine hundred eight thousand, two hundred nine".