328388056609 has 2 divisors, whose sum is σ = 328388056610. Its totient is φ = 328388056608.

The previous prime is 328388056571. The next prime is 328388056637. The reversal of 328388056609 is 906650883823.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 289686150625 + 38701905984 = 538225^2 + 196728^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-328388056609 is a prime.

It is not a weakly prime, because it can be changed into another prime (328388056699) 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, 164194028304 + 164194028305.

It is an arithmetic number, because the mean of its divisors is an integer number (164194028305).

Almost surely, 2^328388056609 is an apocalyptic number.

It is an amenable number.

328388056609 is a deficient number, since it is larger than the sum of its proper divisors (1).

328388056609 is an equidigital number, since it uses as much as digits as its factorization.

328388056609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14929920, while the sum is 58.

The spelling of 328388056609 in words is "three hundred twenty-eight billion, three hundred eighty-eight million, fifty-six thousand, six hundred nine".