67673370689 has 2 divisors, whose sum is σ = 67673370690. Its totient is φ = 67673370688.

The previous prime is 67673370647. The next prime is 67673370691. The reversal of 67673370689 is 98607337676.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54799064464 + 12874306225 = 234092^2 + 113465^2 .

It is a cyclic number.

It is not a de Polignac number, because 67673370689 - 2²⁸ = 67404935233 is a prime.

Together with 67673370691, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (67673373689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33836685344 + 33836685345.

It is an arithmetic number, because the mean of its divisors is an integer number (33836685345).

Almost surely, 2^67673370689 is an apocalyptic number.

It is an amenable number.

67673370689 is a deficient number, since it is larger than the sum of its proper divisors (1).

67673370689 is an equidigital number, since it uses as much as digits as its factorization.

67673370689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48009024, while the sum is 62.

The spelling of 67673370689 in words is "sixty-seven billion, six hundred seventy-three million, three hundred seventy thousand, six hundred eighty-nine".