4066778533 has 2 divisors, whose sum is σ = 4066778534. Its totient is φ = 4066778532.

The previous prime is 4066778531. The next prime is 4066778587. The reversal of 4066778533 is 3358776604.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3040088769 + 1026689764 = 55137^2 + 32042^2 .

It is a cyclic number.

It is not a de Polignac number, because 4066778533 - 2¹ = 4066778531 is a prime.

Together with 4066778531, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4066778531) 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, 2033389266 + 2033389267.

It is an arithmetic number, because the mean of its divisors is an integer number (2033389267).

Almost surely, 2^4066778533 is an apocalyptic number.

It is an amenable number.

4066778533 is a deficient number, since it is larger than the sum of its proper divisors (1).

4066778533 is an equidigital number, since it uses as much as digits as its factorization.

4066778533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2540160, while the sum is 49.

The square root of 4066778533 is about 63771.2986617020. The cubic root of 4066778533 is about 1596.1860372634.

The spelling of 4066778533 in words is "four billion, sixty-six million, seven hundred seventy-eight thousand, five hundred thirty-three".