8063631668 has 12 divisors (see below), whose sum is σ = 14114763012. Its totient is φ = 4030842240.

The previous prime is 8063631659. The next prime is 8063631671. The reversal of 8063631668 is 8661363608.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5291398564 + 2772233104 = 72742^2 + 52652^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224603 + ... + 258018.

It is an arithmetic number, because the mean of its divisors is an integer number (1176230251).

Almost surely, 2^8063631668 is an apocalyptic number.

It is an amenable number.

8063631668 is a deficient number, since it is larger than the sum of its proper divisors (6051131344).

8063631668 is a wasteful number, since it uses less digits than its factorization.

8063631668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486802 (or 486800 counting only the distinct ones).

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

The square root of 8063631668 is about 89797.7264077438. The cubic root of 8063631668 is about 2005.2886418071.

The spelling of 8063631668 in words is "eight billion, sixty-three million, six hundred thirty-one thousand, six hundred sixty-eight".