8636816331 has 48 divisors (see below), whose sum is σ = 14842114560. Its totient is φ = 4770567360.

The previous prime is 8636816317. The next prime is 8636816351. The reversal of 8636816331 is 1336186368.

8636816331 is a `hidden beast` number, since 8 + 6 + 3 + 6 + 8 + 1 + 633 + 1 = 666.

8636816331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8636816331 - 2⁶ = 8636816267 is a prime.

It is a super-2 number, since 2×8636816331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8636816311) 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 47 ways as a sum of consecutive naturals, for example, 59200 + ... + 144146.

It is an arithmetic number, because the mean of its divisors is an integer number (309210720).

Almost surely, 2^8636816331 is an apocalyptic number.

8636816331 is a deficient number, since it is larger than the sum of its proper divisors (6205298229).

8636816331 is a wasteful number, since it uses less digits than its factorization.

8636816331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85056 (or 85053 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 8636816331 is about 92934.4733185700. The cubic root of 8636816331 is about 2051.7190681316.

The spelling of 8636816331 in words is "eight billion, six hundred thirty-six million, eight hundred sixteen thousand, three hundred thirty-one".