8143085866 has 8 divisors (see below), whose sum is σ = 12289565664. Its totient is φ = 4046563980.

The previous prime is 8143085861. The next prime is 8143085869. The reversal of 8143085866 is 6685803418.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (8143085861) 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 3 ways as a sum of consecutive naturals, for example, 12489070 + ... + 12489721.

It is an arithmetic number, because the mean of its divisors is an integer number (1536195708).

Almost surely, 2^8143085866 is an apocalyptic number.

8143085866 is a deficient number, since it is larger than the sum of its proper divisors (4146479798).

8143085866 is a wasteful number, since it uses less digits than its factorization.

8143085866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24978956.

The product of its (nonzero) digits is 1105920, while the sum is 49.

The square root of 8143085866 is about 90239.0484546463. The cubic root of 8143085866 is about 2011.8534314603.

The spelling of 8143085866 in words is "eight billion, one hundred forty-three million, eighty-five thousand, eight hundred sixty-six".