195065807593 has 2 divisors, whose sum is σ = 195065807594. Its totient is φ = 195065807592.

The previous prime is 195065807581. The next prime is 195065807603. The reversal of 195065807593 is 395708560591.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150429949609 + 44635857984 = 387853^2 + 211272^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-195065807593 is a prime.

It is not a weakly prime, because it can be changed into another prime (195065807513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97532903796 + 97532903797.

It is an arithmetic number, because the mean of its divisors is an integer number (97532903797).

Almost surely, 2^195065807593 is an apocalyptic number.

It is an amenable number.

195065807593 is a deficient number, since it is larger than the sum of its proper divisors (1).

195065807593 is an equidigital number, since it uses as much as digits as its factorization.

195065807593 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10206000, while the sum is 58.

The spelling of 195065807593 in words is "one hundred ninety-five billion, sixty-five million, eight hundred seven thousand, five hundred ninety-three".