4563646866 has 32 divisors (see below), whose sum is σ = 10155628800. Its totient is φ = 1519086960.

The previous prime is 4563646699. The next prime is 4563646921. The reversal of 4563646866 is 6686463654.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19945 + ... + 97596.

It is an arithmetic number, because the mean of its divisors is an integer number (317363400).

Almost surely, 2^4563646866 is an apocalyptic number.

4563646866 is an abundant number, since it is smaller than the sum of its proper divisors (5591981934).

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

4563646866 is a wasteful number, since it uses less digits than its factorization.

4563646866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118271 (or 118265 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 54.

The square root of 4563646866 is about 67554.7693801111. The cubic root of 4563646866 is about 1658.7108181440.

The spelling of 4563646866 in words is "four billion, five hundred sixty-three million, six hundred forty-six thousand, eight hundred sixty-six".