325832991689 has 2 divisors, whose sum is σ = 325832991690. Its totient is φ = 325832991688.

The previous prime is 325832991643. The next prime is 325832991691. The reversal of 325832991689 is 986199238523.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 318677185225 + 7155806464 = 564515^2 + 84592^2 .

It is a cyclic number.

It is not a de Polignac number, because 325832991689 - 2²⁴ = 325816214473 is a prime.

It is a Sophie Germain prime.

Together with 325832991691, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (325832991889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162916495844 + 162916495845.

It is an arithmetic number, because the mean of its divisors is an integer number (162916495845).

Almost surely, 2^325832991689 is an apocalyptic number.

It is an amenable number.

325832991689 is a deficient number, since it is larger than the sum of its proper divisors (1).

325832991689 is an equidigital number, since it uses as much as digits as its factorization.

325832991689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50388480, while the sum is 65.

The spelling of 325832991689 in words is "three hundred twenty-five billion, eight hundred thirty-two million, nine hundred ninety-one thousand, six hundred eighty-nine".