67989152789 has 2 divisors, whose sum is σ = 67989152790. Its totient is φ = 67989152788.

The previous prime is 67989152767. The next prime is 67989152809. The reversal of 67989152789 is 98725198976.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67882133764 + 107019025 = 260542^2 + 10345^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67989152789 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67989152089) 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, 33994576394 + 33994576395.

It is an arithmetic number, because the mean of its divisors is an integer number (33994576395).

Almost surely, 2^67989152789 is an apocalyptic number.

It is an amenable number.

67989152789 is a deficient number, since it is larger than the sum of its proper divisors (1).

67989152789 is an equidigital number, since it uses as much as digits as its factorization.

67989152789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 137168640, while the sum is 71.

The spelling of 67989152789 in words is "sixty-seven billion, nine hundred eighty-nine million, one hundred fifty-two thousand, seven hundred eighty-nine".