6680929889 has 2 divisors, whose sum is σ = 6680929890. Its totient is φ = 6680929888.

The previous prime is 6680929883. The next prime is 6680929979. The reversal of 6680929889 is 9889290866.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6491041489 + 189888400 = 80567^2 + 13780^2 .

It is a cyclic number.

It is not a de Polignac number, because 6680929889 - 2¹⁶ = 6680864353 is a prime.

It is not a weakly prime, because it can be changed into another prime (6680929883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3340464944 + 3340464945.

It is an arithmetic number, because the mean of its divisors is an integer number (3340464945).

Almost surely, 2^6680929889 is an apocalyptic number.

It is an amenable number.

6680929889 is a deficient number, since it is larger than the sum of its proper divisors (1).

6680929889 is an equidigital number, since it uses as much as digits as its factorization.

6680929889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26873856, while the sum is 65.

The square root of 6680929889 is about 81736.9554669123. The cubic root of 6680929889 is about 1883.4133222890.

The spelling of 6680929889 in words is "six billion, six hundred eighty million, nine hundred twenty-nine thousand, eight hundred eighty-nine".