8861853666 has 32 divisors (see below), whose sum is σ = 18115511040. Its totient is φ = 2888752896.

The previous prime is 8861853659. The next prime is 8861853769. The reversal of 8861853666 is 6663581688.

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, 353640 + ... + 377868.

It is an arithmetic number, because the mean of its divisors is an integer number (566109720).

Almost surely, 2^8861853666 is an apocalyptic number.

8861853666 is an abundant number, since it is smaller than the sum of its proper divisors (9253657374).

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

8861853666 is a wasteful number, since it uses less digits than its factorization.

8861853666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25578.

The product of its digits is 9953280, while the sum is 57.

The square root of 8861853666 is about 94137.4190532118. The cubic root of 8861853666 is about 2069.3860864700.

The spelling of 8861853666 in words is "eight billion, eight hundred sixty-one million, eight hundred fifty-three thousand, six hundred sixty-six".