325549948578697 has 2 divisors, whose sum is σ = 325549948578698. Its totient is φ = 325549948578696.

The previous prime is 325549948578661. The next prime is 325549948578703. The reversal of 325549948578697 is 796875849945523.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 248479388506441 + 77070560072256 = 15763229^2 + 8778984^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-325549948578697 is a prime.

It is not a weakly prime, because it can be changed into another prime (325549948578097) 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, 162774974289348 + 162774974289349.

It is an arithmetic number, because the mean of its divisors is an integer number (162774974289349).

Almost surely, 2^{325549948578697} is an apocalyptic number.

It is an amenable number.

325549948578697 is a deficient number, since it is larger than the sum of its proper divisors (1).

325549948578697 is an equidigital number, since it uses as much as digits as its factorization.

325549948578697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 164602368000, while the sum is 91.

The spelling of 325549948578697 in words is "three hundred twenty-five trillion, five hundred forty-nine billion, nine hundred forty-eight million, five hundred seventy-eight thousand, six hundred ninety-seven".