67893522689 has 2 divisors, whose sum is σ = 67893522690. Its totient is φ = 67893522688.

The previous prime is 67893522661. The next prime is 67893522703. The reversal of 67893522689 is 98622539876.

67893522689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67828993600 + 64529089 = 260440^2 + 8033^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67893522689 is a prime.

It is not a weakly prime, because it can be changed into another prime (67893522629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33946761344 + 33946761345.

It is an arithmetic number, because the mean of its divisors is an integer number (33946761345).

Almost surely, 2^67893522689 is an apocalyptic number.

It is an amenable number.

67893522689 is a deficient number, since it is larger than the sum of its proper divisors (1).

67893522689 is an equidigital number, since it uses as much as digits as its factorization.

67893522689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 78382080, while the sum is 65.

The spelling of 67893522689 in words is "sixty-seven billion, eight hundred ninety-three million, five hundred twenty-two thousand, six hundred eighty-nine".