195374975594569 has 2 divisors, whose sum is σ = 195374975594570. Its totient is φ = 195374975594568.

The previous prime is 195374975594377. The next prime is 195374975594611. The reversal of 195374975594569 is 965495579473591.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124126604828944 + 71248370765625 = 11141212^2 + 8440875^2 .

It is an emirp because it is prime and its reverse (965495579473591) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 195374975594569 - 2²³ = 195374967205961 is a prime.

It is a super-2 number, since 2×195374975594569² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 195374975594569.

It is not a weakly prime, because it can be changed into another prime (195374975594269) 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, 97687487797284 + 97687487797285.

It is an arithmetic number, because the mean of its divisors is an integer number (97687487797285).

Almost surely, 2^{195374975594569} is an apocalyptic number.

It is an amenable number.

195374975594569 is a deficient number, since it is larger than the sum of its proper divisors (1).

195374975594569 is an equidigital number, since it uses as much as digits as its factorization.

195374975594569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57868020000, while the sum is 88.

The spelling of 195374975594569 in words is "one hundred ninety-five trillion, three hundred seventy-four billion, nine hundred seventy-five million, five hundred ninety-four thousand, five hundred sixty-nine".