8215206044113 has 2 divisors, whose sum is σ = 8215206044114. Its totient is φ = 8215206044112.

The previous prime is 8215206044099. The next prime is 8215206044147. The reversal of 8215206044113 is 3114406025128.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5207784151249 + 3007421892864 = 2282057^2 + 1734192^2 .

It is a cyclic number.

It is not a de Polignac number, because 8215206044113 - 2³⁷ = 8077767090641 is a prime.

It is a super-2 number, since 2×8215206044113² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8215206044153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4107603022056 + 4107603022057.

It is an arithmetic number, because the mean of its divisors is an integer number (4107603022057).

Almost surely, 2^{8215206044113} is an apocalyptic number.

It is an amenable number.

8215206044113 is a deficient number, since it is larger than the sum of its proper divisors (1).

8215206044113 is an equidigital number, since it uses as much as digits as its factorization.

8215206044113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46080, while the sum is 37.

The spelling of 8215206044113 in words is "eight trillion, two hundred fifteen billion, two hundred six million, forty-four thousand, one hundred thirteen".