67629262694449 has 2 divisors, whose sum is σ = 67629262694450. Its totient is φ = 67629262694448.

The previous prime is 67629262694327. The next prime is 67629262694473. The reversal of 67629262694449 is 94449626292676.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67334218182049 + 295044512400 = 8205743^2 + 543180^2 .

It is a cyclic number.

It is not a de Polignac number, because 67629262694449 - 2¹¹ = 67629262692401 is a prime.

It is not a weakly prime, because it can be changed into another prime (67629262694479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33814631347224 + 33814631347225.

It is an arithmetic number, because the mean of its divisors is an integer number (33814631347225).

Almost surely, 2^{67629262694449} is an apocalyptic number.

It is an amenable number.

67629262694449 is a deficient number, since it is larger than the sum of its proper divisors (1).

67629262694449 is an equidigital number, since it uses as much as digits as its factorization.

67629262694449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3386105856, while the sum is 76.

The spelling of 67629262694449 in words is "sixty-seven trillion, six hundred twenty-nine billion, two hundred sixty-two million, six hundred ninety-four thousand, four hundred forty-nine".