328243834591 has 2 divisors, whose sum is σ = 328243834592. Its totient is φ = 328243834590.

The previous prime is 328243834559. The next prime is 328243834613. The reversal of 328243834591 is 195438342823.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 328243834591 - 2⁵ = 328243834559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328243804591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164121917295 + 164121917296.

It is an arithmetic number, because the mean of its divisors is an integer number (164121917296).

Almost surely, 2^328243834591 is an apocalyptic number.

328243834591 is a deficient number, since it is larger than the sum of its proper divisors (1).

328243834591 is an equidigital number, since it uses as much as digits as its factorization.

328243834591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4976640, while the sum is 52.

The spelling of 328243834591 in words is "three hundred twenty-eight billion, two hundred forty-three million, eight hundred thirty-four thousand, five hundred ninety-one".