9831726668 has 12 divisors (see below), whose sum is σ = 17213916720. Its totient is φ = 4913464752.

The previous prime is 9831726661. The next prime is 9831726689. The reversal of 9831726668 is 8666271389.

It is not an unprimeable number, because it can be changed into a prime (9831726661) 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 3 ways as a sum of consecutive naturals, for example, 590408 + ... + 606831.

It is an arithmetic number, because the mean of its divisors is an integer number (1434493060).

Almost surely, 2^9831726668 is an apocalyptic number.

It is an amenable number.

9831726668 is a deficient number, since it is larger than the sum of its proper divisors (7382190052).

9831726668 is a wasteful number, since it uses less digits than its factorization.

9831726668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1199296 (or 1199294 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 56.

The square root of 9831726668 is about 99155.0637536984. The cubic root of 9831726668 is about 2142.2818026028.

The spelling of 9831726668 in words is "nine billion, eight hundred thirty-one million, seven hundred twenty-six thousand, six hundred sixty-eight".