28528362349 has 2 divisors, whose sum is σ = 28528362350. Its totient is φ = 28528362348.

The previous prime is 28528362329. The next prime is 28528362389. The reversal of 28528362349 is 94326382582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27342937449 + 1185424900 = 165357^2 + 34430^2 .

It is a cyclic number.

It is not a de Polignac number, because 28528362349 - 2³³ = 19938427757 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28528362296 and 28528362305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28528362329) 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, 14264181174 + 14264181175.

It is an arithmetic number, because the mean of its divisors is an integer number (14264181175).

Almost surely, 2^28528362349 is an apocalyptic number.

It is an amenable number.

28528362349 is a deficient number, since it is larger than the sum of its proper divisors (1).

28528362349 is an equidigital number, since it uses as much as digits as its factorization.

28528362349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4976640, while the sum is 52.

The spelling of 28528362349 in words is "twenty-eight billion, five hundred twenty-eight million, three hundred sixty-two thousand, three hundred forty-nine".