3333640813 has 2 divisors, whose sum is σ = 3333640814. Its totient is φ = 3333640812.

The previous prime is 3333640757. The next prime is 3333640819. The reversal of 3333640813 is 3180463333.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1821753124 + 1511887689 = 42682^2 + 38883^2 .

It is a cyclic number.

It is not a de Polignac number, because 3333640813 - 2²⁵ = 3300086381 is a prime.

It is a super-2 number, since 2×3333640813² = 22226322140198601938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3333640819) 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, 1666820406 + 1666820407.

It is an arithmetic number, because the mean of its divisors is an integer number (1666820407).

Almost surely, 2^3333640813 is an apocalyptic number.

It is an amenable number.

3333640813 is a deficient number, since it is larger than the sum of its proper divisors (1).

3333640813 is an equidigital number, since it uses as much as digits as its factorization.

3333640813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 34.

The square root of 3333640813 is about 57737.6897095822. The cubic root of 3333640813 is about 1493.8475121348.

The spelling of 3333640813 in words is "three billion, three hundred thirty-three million, six hundred forty thousand, eight hundred thirteen".