8218083853 has 12 divisors (see below), whose sum is σ = 9599492892. Its totient is φ = 7014833280.

The previous prime is 8218083803. The next prime is 8218083859. The reversal of 8218083853 is 3583808128.

It can be written as a sum of positive squares in 2 ways, for example, as 7575613444 + 642470409 = 87038^2 + 25347^2 .

It is not a de Polignac number, because 8218083853 - 2²⁵ = 8184529421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8218083859) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 336150 + ... + 359767.

It is an arithmetic number, because the mean of its divisors is an integer number (799957741).

Almost surely, 2^8218083853 is an apocalyptic number.

It is an amenable number.

8218083853 is a deficient number, since it is larger than the sum of its proper divisors (1381409039).

8218083853 is a wasteful number, since it uses less digits than its factorization.

8218083853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696172 (or 696165 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 46.

The square root of 8218083853 is about 90653.6477644446. The cubic root of 8218083853 is about 2018.0109700073.

The spelling of 8218083853 in words is "eight billion, two hundred eighteen million, eighty-three thousand, eight hundred fifty-three".