3335291681 has 2 divisors, whose sum is σ = 3335291682. Its totient is φ = 3335291680.

The previous prime is 3335291677. The next prime is 3335291683. The reversal of 3335291681 is 1861925333.

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., 2674544656 + 660747025 = 51716^2 + 25705^2 .

It is a cyclic number.

It is not a de Polignac number, because 3335291681 - 2² = 3335291677 is a prime.

It is a super-2 number, since 2×3335291681² = 22248341194695611522, which contains 22 as substring.

Together with 3335291683, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3335291683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1667645840 + 1667645841.

It is an arithmetic number, because the mean of its divisors is an integer number (1667645841).

Almost surely, 2^3335291681 is an apocalyptic number.

It is an amenable number.

3335291681 is a deficient number, since it is larger than the sum of its proper divisors (1).

3335291681 is an equidigital number, since it uses as much as digits as its factorization.

3335291681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 41.

The square root of 3335291681 is about 57751.9842169947. The cubic root of 3335291681 is about 1494.0940631995.

The spelling of 3335291681 in words is "three billion, three hundred thirty-five million, two hundred ninety-one thousand, six hundred eighty-one".