8468444866 has 32 divisors (see below), whose sum is σ = 14849671680. Its totient is φ = 3546494016.

The previous prime is 8468444851. The next prime is 8468444867. The reversal of 8468444866 is 6684448648.

It is a self number, because there is not a number n which added to its sum of digits gives 8468444866.

It is not an unprimeable number, because it can be changed into a prime (8468444867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 419820 + ... + 439528.

It is an arithmetic number, because the mean of its divisors is an integer number (464052240).

Almost surely, 2^8468444866 is an apocalyptic number.

8468444866 is a deficient number, since it is larger than the sum of its proper divisors (6381226814).

8468444866 is a wasteful number, since it uses less digits than its factorization.

8468444866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20418.

The product of its digits is 28311552, while the sum is 58.

The square root of 8468444866 is about 92024.1537097734. The cubic root of 8468444866 is about 2038.2989846043.

The spelling of 8468444866 in words is "eight billion, four hundred sixty-eight million, four hundred forty-four thousand, eight hundred sixty-six".