8660442571 has 4 divisors (see below), whose sum is σ = 9447755544. Its totient is φ = 7873129600.

The previous prime is 8660442559. The next prime is 8660442589. The reversal of 8660442571 is 1752440668.

8660442571 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 8660442571 - 2⁷ = 8660442443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8660142571) 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, 393656470 + ... + 393656491.

It is an arithmetic number, because the mean of its divisors is an integer number (2361938886).

Almost surely, 2^8660442571 is an apocalyptic number.

8660442571 is a deficient number, since it is larger than the sum of its proper divisors (787312973).

8660442571 is a wasteful number, since it uses less digits than its factorization.

8660442571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787312972.

The product of its (nonzero) digits is 322560, while the sum is 43.

The square root of 8660442571 is about 93061.4988649979. The cubic root of 8660442571 is about 2053.5882087695.

The spelling of 8660442571 in words is "eight billion, six hundred sixty million, four hundred forty-two thousand, five hundred seventy-one".