8666884811 has 4 divisors (see below), whose sum is σ = 9333568272. Its totient is φ = 8000201352.

The previous prime is 8666884769. The next prime is 8666884843. The reversal of 8666884811 is 1184886668.

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

It is not a de Polignac number, because 8666884811 - 2³⁰ = 7593142987 is a prime.

It is a super-2 number, since 2×8666884811² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8666887811) 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, 333341711 + ... + 333341736.

It is an arithmetic number, because the mean of its divisors is an integer number (2333392068).

Almost surely, 2^8666884811 is an apocalyptic number.

8666884811 is a deficient number, since it is larger than the sum of its proper divisors (666683461).

8666884811 is a wasteful number, since it uses less digits than its factorization.

8666884811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666683460.

The product of its digits is 3538944, while the sum is 56.

The square root of 8666884811 is about 93096.1052407672. The cubic root of 8666884811 is about 2054.0972831790.

The spelling of 8666884811 in words is "eight billion, six hundred sixty-six million, eight hundred eighty-four thousand, eight hundred eleven".