28548284228237 has 2 divisors, whose sum is σ = 28548284228238. Its totient is φ = 28548284228236.

The previous prime is 28548284228147. The next prime is 28548284228257. The reversal of 28548284228237 is 73282248284582.

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., 27660667754281 + 887616473956 = 5259341^2 + 942134^2 .

It is a cyclic number.

It is not a de Polignac number, because 28548284228237 - 2¹⁰ = 28548284227213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28548284228257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14274142114118 + 14274142114119.

It is an arithmetic number, because the mean of its divisors is an integer number (14274142114119).

Almost surely, 2^{28548284228237} is an apocalyptic number.

It is an amenable number.

28548284228237 is a deficient number, since it is larger than the sum of its proper divisors (1).

28548284228237 is an equidigital number, since it uses as much as digits as its factorization.

28548284228237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 220200960, while the sum is 65.

The spelling of 28548284228237 in words is "twenty-eight trillion, five hundred forty-eight billion, two hundred eighty-four million, two hundred twenty-eight thousand, two hundred thirty-seven".