28684503241 has 2 divisors, whose sum is σ = 28684503242. Its totient is φ = 28684503240.

The previous prime is 28684503203. The next prime is 28684503247. The reversal of 28684503241 is 14230548682.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28684503225 + 16 = 169365^2 + 4^2 .

It is a cyclic number.

It is not a de Polignac number, because 28684503241 - 2²¹ = 28682406089 is a prime.

It is not a weakly prime, because it can be changed into another prime (28684503247) 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, 14342251620 + 14342251621.

It is an arithmetic number, because the mean of its divisors is an integer number (14342251621).

Almost surely, 2^28684503241 is an apocalyptic number.

It is an amenable number.

28684503241 is a deficient number, since it is larger than the sum of its proper divisors (1).

28684503241 is an equidigital number, since it uses as much as digits as its factorization.

28684503241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 368640, while the sum is 43.

The spelling of 28684503241 in words is "twenty-eight billion, six hundred eighty-four million, five hundred three thousand, two hundred forty-one".