326880609673 has 2 divisors, whose sum is σ = 326880609674. Its totient is φ = 326880609672.

The previous prime is 326880609667. The next prime is 326880609691. The reversal of 326880609673 is 376906088623.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 278433518224 + 48447091449 = 527668^2 + 220107^2 .

It is an emirp because it is prime and its reverse (376906088623) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 326880609673 - 2⁹ = 326880609161 is a prime.

It is not a weakly prime, because it can be changed into another prime (326880609173) 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, 163440304836 + 163440304837.

It is an arithmetic number, because the mean of its divisors is an integer number (163440304837).

Almost surely, 2^326880609673 is an apocalyptic number.

It is an amenable number.

326880609673 is a deficient number, since it is larger than the sum of its proper divisors (1).

326880609673 is an equidigital number, since it uses as much as digits as its factorization.

326880609673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15676416, while the sum is 58.

The spelling of 326880609673 in words is "three hundred twenty-six billion, eight hundred eighty million, six hundred nine thousand, six hundred seventy-three".