28128704353 has 2 divisors, whose sum is σ = 28128704354. Its totient is φ = 28128704352.

The previous prime is 28128704291. The next prime is 28128704389. The reversal of 28128704353 is 35340782182.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15048664929 + 13080039424 = 122673^2 + 114368^2 .

It is a cyclic number.

It is not a de Polignac number, because 28128704353 - 2²⁹ = 27591833441 is a prime.

It is a super-2 number, since 2×28128704353² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28128708353) 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, 14064352176 + 14064352177.

It is an arithmetic number, because the mean of its divisors is an integer number (14064352177).

Almost surely, 2^28128704353 is an apocalyptic number.

It is an amenable number.

28128704353 is a deficient number, since it is larger than the sum of its proper divisors (1).

28128704353 is an equidigital number, since it uses as much as digits as its factorization.

28128704353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 322560, while the sum is 43.

The spelling of 28128704353 in words is "twenty-eight billion, one hundred twenty-eight million, seven hundred four thousand, three hundred fifty-three".