328666276837 has 2 divisors, whose sum is σ = 328666276838. Its totient is φ = 328666276836.

The previous prime is 328666276831. The next prime is 328666276879. The reversal of 328666276837 is 738672666823.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 165295912356 + 163370364481 = 406566^2 + 404191^2 .

It is a cyclic number.

It is not a de Polignac number, because 328666276837 - 2²⁷ = 328532059109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328666276831) 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, 164333138418 + 164333138419.

It is an arithmetic number, because the mean of its divisors is an integer number (164333138419).

Almost surely, 2^328666276837 is an apocalyptic number.

It is an amenable number.

328666276837 is a deficient number, since it is larger than the sum of its proper divisors (1).

328666276837 is an equidigital number, since it uses as much as digits as its factorization.

328666276837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 146313216, while the sum is 64.

The spelling of 328666276837 in words is "three hundred twenty-eight billion, six hundred sixty-six million, two hundred seventy-six thousand, eight hundred thirty-seven".