67029606689 has 2 divisors, whose sum is σ = 67029606690. Its totient is φ = 67029606688.

The previous prime is 67029606661. The next prime is 67029606701. The reversal of 67029606689 is 98660692076.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63550376464 + 3479230225 = 252092^2 + 58985^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67029606689 is a prime.

It is not a weakly prime, because it can be changed into another prime (67029606619) 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, 33514803344 + 33514803345.

It is an arithmetic number, because the mean of its divisors is an integer number (33514803345).

Almost surely, 2^67029606689 is an apocalyptic number.

It is an amenable number.

67029606689 is a deficient number, since it is larger than the sum of its proper divisors (1).

67029606689 is an equidigital number, since it uses as much as digits as its factorization.

67029606689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11757312, while the sum is 59.

The spelling of 67029606689 in words is "sixty-seven billion, twenty-nine million, six hundred six thousand, six hundred eighty-nine".