8240086866 has 32 divisors (see below), whose sum is σ = 18025862400. Its totient is φ = 2490400080.

The previous prime is 8240086793. The next prime is 8240086867. The reversal of 8240086866 is 6686800428.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (8240086867) 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, 139696 + ... + 189723.

It is an arithmetic number, because the mean of its divisors is an integer number (563308200).

Almost surely, 2^8240086866 is an apocalyptic number.

8240086866 is an abundant number, since it is smaller than the sum of its proper divisors (9785775534).

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

8240086866 is a wasteful number, since it uses less digits than its factorization.

8240086866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329814.

The product of its (nonzero) digits is 884736, while the sum is 48.

The square root of 8240086866 is about 90774.9242136836. The cubic root of 8240086866 is about 2019.8103656571.

The spelling of 8240086866 in words is "eight billion, two hundred forty million, eighty-six thousand, eight hundred sixty-six".