8492499570221 has 2 divisors, whose sum is σ = 8492499570222. Its totient is φ = 8492499570220.

The previous prime is 8492499570211. The next prime is 8492499570241. The reversal of 8492499570221 is 1220759942948.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5131987321321 + 3360512248900 = 2265389^2 + 1833170^2 .

It is a cyclic number.

It is not a de Polignac number, because 8492499570221 - 2⁶ = 8492499570157 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8492499570211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4246249785110 + 4246249785111.

It is an arithmetic number, because the mean of its divisors is an integer number (4246249785111).

Almost surely, 2^{8492499570221} is an apocalyptic number.

It is an amenable number.

8492499570221 is a deficient number, since it is larger than the sum of its proper divisors (1).

8492499570221 is an equidigital number, since it uses as much as digits as its factorization.

8492499570221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26127360, while the sum is 62.

The spelling of 8492499570221 in words is "eight trillion, four hundred ninety-two billion, four hundred ninety-nine million, five hundred seventy thousand, two hundred twenty-one".