8227755318213 has 6 divisors (see below), whose sum is σ = 11884535459654. Its totient is φ = 5485170212136.

The previous prime is 8227755318199. The next prime is 8227755318287. The reversal of 8227755318213 is 3128135577228.

8227755318213 is a `hidden beast` number, since 8 + 2 + 2 + 7 + 7 + 553 + 1 + 82 + 1 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5884229102049 + 2343526216164 = 2425743^2 + 1530858^2 .

It is not a de Polignac number, because 8227755318213 - 2⁶ = 8227755318149 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8227755318213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8227755317213) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 457097517670 + ... + 457097517687.

Almost surely, 2^{8227755318213} is an apocalyptic number.

It is an amenable number.

8227755318213 is a deficient number, since it is larger than the sum of its proper divisors (3656780141441).

8227755318213 is a wasteful number, since it uses less digits than its factorization.

8227755318213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914195035363 (or 914195035360 counting only the distinct ones).

The product of its digits is 5644800, while the sum is 54.

The spelling of 8227755318213 in words is "eight trillion, two hundred twenty-seven billion, seven hundred fifty-five million, three hundred eighteen thousand, two hundred thirteen".