8644227568 has 20 divisors (see below), whose sum is σ = 16880070400. Its totient is φ = 4288080384.

The previous prime is 8644227499. The next prime is 8644227583. The reversal of 8644227568 is 8657224468.

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, 2124993 + ... + 2129056.

It is an arithmetic number, because the mean of its divisors is an integer number (844003520).

Almost surely, 2^8644227568 is an apocalyptic number.

It is an amenable number.

8644227568 is a deficient number, since it is larger than the sum of its proper divisors (8235842832).

8644227568 is a wasteful number, since it uses less digits than its factorization.

8644227568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4254184 (or 4254178 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 52.

The square root of 8644227568 is about 92974.3382229742. The cubic root of 8644227568 is about 2052.3057591997.

The spelling of 8644227568 in words is "eight billion, six hundred forty-four million, two hundred twenty-seven thousand, five hundred sixty-eight".