8464680866 has 4 divisors (see below), whose sum is σ = 12697021302. Its totient is φ = 4232340432.

The previous prime is 8464680857. The next prime is 8464680877. The reversal of 8464680866 is 6680864648.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8444691025 + 19989841 = 91895^2 + 4471^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2116170215 + ... + 2116170218.

Almost surely, 2^8464680866 is an apocalyptic number.

8464680866 is a deficient number, since it is larger than the sum of its proper divisors (4232340436).

8464680866 is a wasteful number, since it uses less digits than its factorization.

8464680866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4232340435.

The product of its (nonzero) digits is 10616832, while the sum is 56.

The square root of 8464680866 is about 92003.7002842820. The cubic root of 8464680866 is about 2037.9969498359.

The spelling of 8464680866 in words is "eight billion, four hundred sixty-four million, six hundred eighty thousand, eight hundred sixty-six".