325775686256197 has 2 divisors, whose sum is σ = 325775686256198. Its totient is φ = 325775686256196.

The previous prime is 325775686256179. The next prime is 325775686256203. The reversal of 325775686256197 is 791652686577523.

Together with previous prime (325775686256179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 324825969739041 + 949716517156 = 18022929^2 + 974534^2 .

It is a cyclic number.

It is not a de Polignac number, because 325775686256197 - 2⁴⁷ = 185038197900869 is a prime.

It is a super-2 number, since 2×325775686256197² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (325775686256497) 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, 162887843128098 + 162887843128099.

It is an arithmetic number, because the mean of its divisors is an integer number (162887843128099).

Almost surely, 2^{325775686256197} is an apocalyptic number.

It is an amenable number.

325775686256197 is a deficient number, since it is larger than the sum of its proper divisors (1).

325775686256197 is an equidigital number, since it uses as much as digits as its factorization.

325775686256197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8001504000, while the sum is 79.

The spelling of 325775686256197 in words is "three hundred twenty-five trillion, seven hundred seventy-five billion, six hundred eighty-six million, two hundred fifty-six thousand, one hundred ninety-seven".