9680981929 has 2 divisors, whose sum is σ = 9680981930. Its totient is φ = 9680981928.

The previous prime is 9680981887. The next prime is 9680981939. The reversal of 9680981929 is 9291890869.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9540796329 + 140185600 = 97677^2 + 11840^2 .

It is a cyclic number.

It is not a de Polignac number, because 9680981929 - 2⁹ = 9680981417 is a prime.

It is a super-2 number, since 2×9680981929² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9680981939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4840490964 + 4840490965.

It is an arithmetic number, because the mean of its divisors is an integer number (4840490965).

Almost surely, 2^9680981929 is an apocalyptic number.

It is an amenable number.

9680981929 is a deficient number, since it is larger than the sum of its proper divisors (1).

9680981929 is an equidigital number, since it uses as much as digits as its factorization.

9680981929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5038848, while the sum is 61.

The square root of 9680981929 is about 98391.9810197965. The cubic root of 9680981929 is about 2131.2765334754.

The spelling of 9680981929 in words is "nine billion, six hundred eighty million, nine hundred eighty-one thousand, nine hundred twenty-nine".