202844968681 has 2 divisors, whose sum is σ = 202844968682. Its totient is φ = 202844968680.

The previous prime is 202844968631. The next prime is 202844968709. The reversal of 202844968681 is 186869448202.

It is a happy number.

202844968681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 192318208681 + 10526760000 = 438541^2 + 102600^2 .

It is a cyclic number.

It is not a de Polignac number, because 202844968681 - 2¹¹ = 202844966633 is a prime.

It is a super-2 number, since 2×202844968681² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (202844968631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101422484340 + 101422484341.

It is an arithmetic number, because the mean of its divisors is an integer number (101422484341).

Almost surely, 2^202844968681 is an apocalyptic number.

It is an amenable number.

202844968681 is a deficient number, since it is larger than the sum of its proper divisors (1).

202844968681 is an equidigital number, since it uses as much as digits as its factorization.

202844968681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10616832, while the sum is 58.

The spelling of 202844968681 in words is "two hundred two billion, eight hundred forty-four million, nine hundred sixty-eight thousand, six hundred eighty-one".