9968161589 has 2 divisors, whose sum is σ = 9968161590. Its totient is φ = 9968161588.

The previous prime is 9968161579. The next prime is 9968161649. The reversal of 9968161589 is 9851618699.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7908544900 + 2059616689 = 88930^2 + 45383^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9968161589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9968161529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4984080794 + 4984080795.

It is an arithmetic number, because the mean of its divisors is an integer number (4984080795).

Almost surely, 2^9968161589 is an apocalyptic number.

It is an amenable number.

9968161589 is a deficient number, since it is larger than the sum of its proper divisors (1).

9968161589 is an equidigital number, since it uses as much as digits as its factorization.

9968161589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8398080, while the sum is 62.

The square root of 9968161589 is about 99840.6810323327. The cubic root of 9968161589 is about 2152.1457999185.

The spelling of 9968161589 in words is "nine billion, nine hundred sixty-eight million, one hundred sixty-one thousand, five hundred eighty-nine".