28606841573 has 2 divisors, whose sum is σ = 28606841574. Its totient is φ = 28606841572.

The previous prime is 28606841551. The next prime is 28606841581. The reversal of 28606841573 is 37514860682.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19363557409 + 9243284164 = 139153^2 + 96142^2 .

It is a cyclic number.

It is not a de Polignac number, because 28606841573 - 2¹² = 28606837477 is a prime.

It is a super-2 number, since 2×28606841573² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28606841533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14303420786 + 14303420787.

It is an arithmetic number, because the mean of its divisors is an integer number (14303420787).

Almost surely, 2^28606841573 is an apocalyptic number.

It is an amenable number.

28606841573 is a deficient number, since it is larger than the sum of its proper divisors (1).

28606841573 is an equidigital number, since it uses as much as digits as its factorization.

28606841573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 28606841573 in words is "twenty-eight billion, six hundred six million, eight hundred forty-one thousand, five hundred seventy-three".