8423566630643 has 4 divisors (see below), whose sum is σ = 8438318937048. Its totient is φ = 8408814324240.

The previous prime is 8423566630543. The next prime is 8423566630693. The reversal of 8423566630643 is 3460366653248.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8423566630643 - 2⁸ = 8423566630387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8423566630693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7376152346 + ... + 7376153487.

It is an arithmetic number, because the mean of its divisors is an integer number (2109579734262).

Almost surely, 2^{8423566630643} is an apocalyptic number.

8423566630643 is a deficient number, since it is larger than the sum of its proper divisors (14752306405).

8423566630643 is a wasteful number, since it uses less digits than its factorization.

8423566630643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14752306404.

The product of its (nonzero) digits is 44789760, while the sum is 56.

The spelling of 8423566630643 in words is "eight trillion, four hundred twenty-three billion, five hundred sixty-six million, six hundred thirty thousand, six hundred forty-three".