28058221133 has 2 divisors, whose sum is σ = 28058221134. Its totient is φ = 28058221132.

The previous prime is 28058221097. The next prime is 28058221231. The reversal of 28058221133 is 33112285082.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27224340004 + 833881129 = 164998^2 + 28877^2 .

It is a cyclic number.

It is not a de Polignac number, because 28058221133 - 2¹⁸ = 28057958989 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28058221093 and 28058221102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28058221333) 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, 14029110566 + 14029110567.

It is an arithmetic number, because the mean of its divisors is an integer number (14029110567).

Almost surely, 2^28058221133 is an apocalyptic number.

It is an amenable number.

28058221133 is a deficient number, since it is larger than the sum of its proper divisors (1).

28058221133 is an equidigital number, since it uses as much as digits as its factorization.

28058221133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 35.

The spelling of 28058221133 in words is "twenty-eight billion, fifty-eight million, two hundred twenty-one thousand, one hundred thirty-three".