8186664851 has 8 divisors (see below), whose sum is σ = 8292871680. Its totient is φ = 8080522632.

The previous prime is 8186664847. The next prime is 8186664877. The reversal of 8186664851 is 1584666818.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8186664851 - 2² = 8186664847 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8186664793 and 8186664802.

It is not an unprimeable number, because it can be changed into a prime (8186064851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271916 + ... + 300518.

It is an arithmetic number, because the mean of its divisors is an integer number (1036608960).

Almost surely, 2^8186664851 is an apocalyptic number.

8186664851 is a deficient number, since it is larger than the sum of its proper divisors (106206829).

8186664851 is a wasteful number, since it uses less digits than its factorization.

8186664851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32305.

The product of its digits is 2211840, while the sum is 53.

The square root of 8186664851 is about 90480.1903788890. The cubic root of 8186664851 is about 2015.4359632763.

The spelling of 8186664851 in words is "eight billion, one hundred eighty-six million, six hundred sixty-four thousand, eight hundred fifty-one".