9681822321 has 8 divisors (see below), whose sum is σ = 12910167744. Its totient is φ = 6454012560.

The previous prime is 9681822313. The next prime is 9681822341. The reversal of 9681822321 is 1232281869.

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

It is not a de Polignac number, because 9681822321 - 2³ = 9681822313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9681822341) 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 in 7 ways as a sum of consecutive naturals, for example, 89650 + ... + 165531.

It is an arithmetic number, because the mean of its divisors is an integer number (1613770968).

Almost surely, 2^9681822321 is an apocalyptic number.

It is an amenable number.

9681822321 is a deficient number, since it is larger than the sum of its proper divisors (3228345423).

9681822321 is a wasteful number, since it uses less digits than its factorization.

9681822321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267831.

The product of its digits is 82944, while the sum is 42.

The square root of 9681822321 is about 98396.2515597012. The cubic root of 9681822321 is about 2131.3382026992.

The spelling of 9681822321 in words is "nine billion, six hundred eighty-one million, eight hundred twenty-two thousand, three hundred twenty-one".