8211664853 has 48 divisors (see below), whose sum is σ = 11014315200. Its totient is φ = 6059128320.

The previous prime is 8211664849. The next prime is 8211664919. The reversal of 8211664853 is 3584661128.

8211664853 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8211664853 - 2² = 8211664849 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8211664823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 450038 + ... + 467928.

It is an arithmetic number, because the mean of its divisors is an integer number (229464900).

Almost surely, 2^8211664853 is an apocalyptic number.

It is an amenable number.

8211664853 is a deficient number, since it is larger than the sum of its proper divisors (2802650347).

8211664853 is a wasteful number, since it uses less digits than its factorization.

8211664853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17970 (or 17963 counting only the distinct ones).

The product of its digits is 276480, while the sum is 44.

The square root of 8211664853 is about 90618.2368676416. The cubic root of 8211664853 is about 2017.4854222549.

The spelling of 8211664853 in words is "eight billion, two hundred eleven million, six hundred sixty-four thousand, eight hundred fifty-three".