9968199677 has 2 divisors, whose sum is σ = 9968199678. Its totient is φ = 9968199676.

The previous prime is 9968199641. The next prime is 9968199719. The reversal of 9968199677 is 7769918699.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8772008281 + 1196191396 = 93659^2 + 34586^2 .

It is a cyclic number.

It is not a de Polignac number, because 9968199677 - 2⁶ = 9968199613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9968199677.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9968199607) 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 as a sum of consecutive naturals, namely, 4984099838 + 4984099839.

It is an arithmetic number, because the mean of its divisors is an integer number (4984099839).

Almost surely, 2^9968199677 is an apocalyptic number.

It is an amenable number.

9968199677 is a deficient number, since it is larger than the sum of its proper divisors (1).

9968199677 is an equidigital number, since it uses as much as digits as its factorization.

9968199677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 92588832, while the sum is 71.

The square root of 9968199677 is about 99840.8717760417. The cubic root of 9968199677 is about 2152.1485410065.

The spelling of 9968199677 in words is "nine billion, nine hundred sixty-eight million, one hundred ninety-nine thousand, six hundred seventy-seven".