2868305221 has 2 divisors, whose sum is σ = 2868305222. Its totient is φ = 2868305220.

The previous prime is 2868305201. The next prime is 2868305299. The reversal of 2868305221 is 1225038682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2297764225 + 570540996 = 47935^2 + 23886^2 .

It is a cyclic number.

It is not a de Polignac number, because 2868305221 - 2⁹ = 2868304709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2868305201) 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, 1434152610 + 1434152611.

It is an arithmetic number, because the mean of its divisors is an integer number (1434152611).

Almost surely, 2^2868305221 is an apocalyptic number.

It is an amenable number.

2868305221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2868305221 is an equidigital number, since it uses as much as digits as its factorization.

2868305221 is an odious number, because the sum of its binary digits is odd.

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

The square root of 2868305221 is about 53556.5609519506. The cubic root of 2868305221 is about 1420.8289184289.

The spelling of 2868305221 in words is "two billion, eight hundred sixty-eight million, three hundred five thousand, two hundred twenty-one".