8066863689 has 4 divisors (see below), whose sum is σ = 10755818256. Its totient is φ = 5377909124.

The previous prime is 8066863663. The next prime is 8066863699. The reversal of 8066863689 is 9863686608.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8066863689 - 2⁵ = 8066863657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8066863699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1344477279 + ... + 1344477284.

It is an arithmetic number, because the mean of its divisors is an integer number (2688954564).

Almost surely, 2^8066863689 is an apocalyptic number.

It is an amenable number.

8066863689 is a deficient number, since it is larger than the sum of its proper divisors (2688954567).

8066863689 is a wasteful number, since it uses less digits than its factorization.

8066863689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2688954566.

The product of its (nonzero) digits is 17915904, while the sum is 60.

The square root of 8066863689 is about 89815.7207230449. The cubic root of 8066863689 is about 2005.5565223168.

The spelling of 8066863689 in words is "eight billion, sixty-six million, eight hundred sixty-three thousand, six hundred eighty-nine".