8668323533 has 2 divisors, whose sum is σ = 8668323534. Its totient is φ = 8668323532.

The previous prime is 8668323529. The next prime is 8668323541. The reversal of 8668323533 is 3353238668.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6316752484 + 2351571049 = 79478^2 + 48493^2 .

It is a cyclic number.

It is not a de Polignac number, because 8668323533 - 2² = 8668323529 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8668373533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4334161766 + 4334161767.

It is an arithmetic number, because the mean of its divisors is an integer number (4334161767).

Almost surely, 2^8668323533 is an apocalyptic number.

It is an amenable number.

8668323533 is a deficient number, since it is larger than the sum of its proper divisors (1).

8668323533 is an equidigital number, since it uses as much as digits as its factorization.

8668323533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1866240, while the sum is 47.

The square root of 8668323533 is about 93103.8319995477. The cubic root of 8668323533 is about 2054.2109384506.

The spelling of 8668323533 in words is "eight billion, six hundred sixty-eight million, three hundred twenty-three thousand, five hundred thirty-three".