3281673388529 has 2 divisors, whose sum is σ = 3281673388530. Its totient is φ = 3281673388528.

The previous prime is 3281673388501. The next prime is 3281673388537. The reversal of 3281673388529 is 9258833761823.

3281673388529 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3157899594304 + 123773794225 = 1777048^2 + 351815^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3281673388529 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3281673388129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1640836694264 + 1640836694265.

It is an arithmetic number, because the mean of its divisors is an integer number (1640836694265).

Almost surely, 2^{3281673388529} is an apocalyptic number.

It is an amenable number.

3281673388529 is a deficient number, since it is larger than the sum of its proper divisors (1).

3281673388529 is an equidigital number, since it uses as much as digits as its factorization.

3281673388529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 104509440, while the sum is 65.

The spelling of 3281673388529 in words is "three trillion, two hundred eighty-one billion, six hundred seventy-three million, three hundred eighty-eight thousand, five hundred twenty-nine".