8218563443 has 8 divisors (see below), whose sum is σ = 8255502816. Its totient is φ = 8181648000.

The previous prime is 8218563427. The next prime is 8218563497. The reversal of 8218563443 is 3443658128.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8218563443 - 2⁴ = 8218563427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8218563394 and 8218563403.

It is not an unprimeable number, because it can be changed into a prime (8218563043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1286405 + ... + 1292777.

It is an arithmetic number, because the mean of its divisors is an integer number (1031937852).

Almost surely, 2^8218563443 is an apocalyptic number.

8218563443 is a deficient number, since it is larger than the sum of its proper divisors (36939373).

8218563443 is a wasteful number, since it uses less digits than its factorization.

8218563443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11965.

The product of its digits is 552960, while the sum is 44.

The square root of 8218563443 is about 90656.2929034714. The cubic root of 8218563443 is about 2018.0502248616.

The spelling of 8218563443 in words is "eight billion, two hundred eighteen million, five hundred sixty-three thousand, four hundred forty-three".