3681066863 has 2 divisors, whose sum is σ = 3681066864. Its totient is φ = 3681066862.

The previous prime is 3681066833. The next prime is 3681066877. The reversal of 3681066863 is 3686601863.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3681066863 - 2⁸ = 3681066607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3681066803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1840533431 + 1840533432.

It is an arithmetic number, because the mean of its divisors is an integer number (1840533432).

Almost surely, 2^3681066863 is an apocalyptic number.

3681066863 is a deficient number, since it is larger than the sum of its proper divisors (1).

3681066863 is an equidigital number, since it uses as much as digits as its factorization.

3681066863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 746496, while the sum is 47.

The square root of 3681066863 is about 60671.7962730625. The cubic root of 3681066863 is about 1544.0377068867.

The spelling of 3681066863 in words is "three billion, six hundred eighty-one million, sixty-six thousand, eight hundred sixty-three".