8318133853 has 2 divisors, whose sum is σ = 8318133854. Its totient is φ = 8318133852.

The previous prime is 8318133851. The next prime is 8318133913. The reversal of 8318133853 is 3583318138.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5992772569 + 2325361284 = 77413^2 + 48222^2 .

It is a cyclic number.

It is not a de Polignac number, because 8318133853 - 2¹ = 8318133851 is a prime.

Together with 8318133851, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8318133851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4159066926 + 4159066927.

It is an arithmetic number, because the mean of its divisors is an integer number (4159066927).

Almost surely, 2^8318133853 is an apocalyptic number.

It is an amenable number.

8318133853 is a deficient number, since it is larger than the sum of its proper divisors (1).

8318133853 is an equidigital number, since it uses as much as digits as its factorization.

8318133853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 43.

The square root of 8318133853 is about 91203.8039393095. The cubic root of 8318133853 is about 2026.1672975635.

The spelling of 8318133853 in words is "eight billion, three hundred eighteen million, one hundred thirty-three thousand, eight hundred fifty-three".