9680981887 has 2 divisors, whose sum is σ = 9680981888. Its totient is φ = 9680981886.

The previous prime is 9680981873. The next prime is 9680981929. The reversal of 9680981887 is 7881890869.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9680981887 - 2¹⁹ = 9680457599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9680982887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4840490943 + 4840490944.

It is an arithmetic number, because the mean of its divisors is an integer number (4840490944).

Almost surely, 2^9680981887 is an apocalyptic number.

9680981887 is a deficient number, since it is larger than the sum of its proper divisors (1).

9680981887 is an equidigital number, since it uses as much as digits as its factorization.

9680981887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13934592, while the sum is 64.

The square root of 9680981887 is about 98391.9808063645. The cubic root of 9680981887 is about 2131.2765303933.

The spelling of 9680981887 in words is "nine billion, six hundred eighty million, nine hundred eighty-one thousand, eight hundred eighty-seven".