8045746866 has 48 divisors (see below), whose sum is σ = 17934280728. Its totient is φ = 2604960000.

The previous prime is 8045746837. The next prime is 8045746867. The reversal of 8045746866 is 6686475408.

8045746866 is a `hidden beast` number, since 8 + 0 + 4 + 574 + 6 + 8 + 66 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 8015441841 + 30305025 = 89529^2 + 5505^2 .

It is not an unprimeable number, because it can be changed into a prime (8045746867) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 390216 + ... + 410316.

Almost surely, 2^8045746866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8045746866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8967140364).

8045746866 is an abundant number, since it is smaller than the sum of its proper divisors (9888533862).

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

8045746866 is a wasteful number, since it uses less digits than its factorization.

8045746866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20747 (or 20744 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 54.

The square root of 8045746866 is about 89698.0873040223. The cubic root of 8045746866 is about 2003.8049952482.

The spelling of 8045746866 in words is "eight billion, forty-five million, seven hundred forty-six thousand, eight hundred sixty-six".