8223394368864 has 96 divisors (see below), whose sum is σ = 21603459477600. Its totient is φ = 2738967478272.

The previous prime is 8223394368863. The next prime is 8223394368877. The reversal of 8223394368864 is 4688634933228.

It is a tau number, because it is divible by the number of its divisors (96).

It is a hoax number, since the sum of its digits (66) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 8223394368795 and 8223394368804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8223394368863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 852248712 + ... + 852258360.

It is an arithmetic number, because the mean of its divisors is an integer number (225036036225).

Almost surely, 2^{8223394368864} is an apocalyptic number.

It is an amenable number.

8223394368864 is an abundant number, since it is smaller than the sum of its proper divisors (13380065108736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8223394368864 is a wasteful number, since it uses less digits than its factorization.

8223394368864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15752 (or 15744 counting only the distinct ones).

The product of its digits is 286654464, while the sum is 66.

The spelling of 8223394368864 in words is "eight trillion, two hundred twenty-three billion, three hundred ninety-four million, three hundred sixty-eight thousand, eight hundred sixty-four".