9840959873 has 2 divisors, whose sum is σ = 9840959874. Its totient is φ = 9840959872.

The previous prime is 9840959857. The next prime is 9840959897. The reversal of 9840959873 is 3789590489.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9831119104 + 9840769 = 99152^2 + 3137^2 .

It is a cyclic number.

It is not a de Polignac number, because 9840959873 - 2⁴ = 9840959857 is a prime.

It is a super-2 number, since 2×9840959873² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9840959173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4920479936 + 4920479937.

It is an arithmetic number, because the mean of its divisors is an integer number (4920479937).

Almost surely, 2^9840959873 is an apocalyptic number.

It is an amenable number.

9840959873 is a deficient number, since it is larger than the sum of its proper divisors (1).

9840959873 is an equidigital number, since it uses as much as digits as its factorization.

9840959873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19595520, while the sum is 62.

The square root of 9840959873 is about 99201.6122500033. The cubic root of 9840959873 is about 2142.9522151340.

The spelling of 9840959873 in words is "nine billion, eight hundred forty million, nine hundred fifty-nine thousand, eight hundred seventy-three".