325847831517917 has 2 divisors, whose sum is σ = 325847831517918. Its totient is φ = 325847831517916.

The previous prime is 325847831517893. The next prime is 325847831517959. The reversal of 325847831517917 is 719715138748523.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 296685088253401 + 29162743264516 = 17224549^2 + 5400254^2 .

It is a cyclic number.

It is not a de Polignac number, because 325847831517917 - 2⁴² = 321449785006813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (325847831517997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162923915758958 + 162923915758959.

It is an arithmetic number, because the mean of its divisors is an integer number (162923915758959).

Almost surely, 2^{325847831517917} is an apocalyptic number.

It is an amenable number.

325847831517917 is a deficient number, since it is larger than the sum of its proper divisors (1).

325847831517917 is an equidigital number, since it uses as much as digits as its factorization.

325847831517917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 355622400, while the sum is 71.

The spelling of 325847831517917 in words is "three hundred twenty-five trillion, eight hundred forty-seven billion, eight hundred thirty-one million, five hundred seventeen thousand, nine hundred seventeen".