128173766341 has 2 divisors, whose sum is σ = 128173766342. Its totient is φ = 128173766340.

The previous prime is 128173766299. The next prime is 128173766359. The reversal of 128173766341 is 143667371821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104374224900 + 23799541441 = 323070^2 + 154271^2 .

It is an emirp because it is prime and its reverse (143667371821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 128173766341 - 2⁹ = 128173765829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128173769341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64086883170 + 64086883171.

It is an arithmetic number, because the mean of its divisors is an integer number (64086883171).

Almost surely, 2^128173766341 is an apocalyptic number.

It is an amenable number.

128173766341 is a deficient number, since it is larger than the sum of its proper divisors (1).

128173766341 is an equidigital number, since it uses as much as digits as its factorization.

128173766341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1016064, while the sum is 49.

The spelling of 128173766341 in words is "one hundred twenty-eight billion, one hundred seventy-three million, seven hundred sixty-six thousand, three hundred forty-one".