28052448785453 has 2 divisors, whose sum is σ = 28052448785454. Its totient is φ = 28052448785452.

The previous prime is 28052448785447. The next prime is 28052448785509. The reversal of 28052448785453 is 35458784425082.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22968267120484 + 5084181664969 = 4792522^2 + 2254813^2 .

It is a cyclic number.

It is not a de Polignac number, because 28052448785453 - 2⁴ = 28052448785437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28052448785453.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28052448755453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14026224392726 + 14026224392727.

It is an arithmetic number, because the mean of its divisors is an integer number (14026224392727).

Almost surely, 2^{28052448785453} is an apocalyptic number.

It is an amenable number.

28052448785453 is a deficient number, since it is larger than the sum of its proper divisors (1).

28052448785453 is an equidigital number, since it uses as much as digits as its factorization.

28052448785453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 344064000, while the sum is 65.

The spelling of 28052448785453 in words is "twenty-eight trillion, fifty-two billion, four hundred forty-eight million, seven hundred eighty-five thousand, four hundred fifty-three".