3313428332581 has 2 divisors, whose sum is σ = 3313428332582. Its totient is φ = 3313428332580.

The previous prime is 3313428332537. The next prime is 3313428332611. The reversal of 3313428332581 is 1852338243133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2206534964481 + 1106893368100 = 1485441^2 + 1052090^2 .

It is a cyclic number.

It is not a de Polignac number, because 3313428332581 - 2¹¹ = 3313428330533 is a prime.

It is a super-2 number, since 2×3313428332581² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3313428330581) 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, 1656714166290 + 1656714166291.

It is an arithmetic number, because the mean of its divisors is an integer number (1656714166291).

Almost surely, 2^{3313428332581} is an apocalyptic number.

It is an amenable number.

3313428332581 is a deficient number, since it is larger than the sum of its proper divisors (1).

3313428332581 is an equidigital number, since it uses as much as digits as its factorization.

3313428332581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1244160, while the sum is 46.

The spelling of 3313428332581 in words is "three trillion, three hundred thirteen billion, four hundred twenty-eight million, three hundred thirty-two thousand, five hundred eighty-one".