28526582317 has 2 divisors, whose sum is σ = 28526582318. Its totient is φ = 28526582316.

The previous prime is 28526582297. The next prime is 28526582431. The reversal of 28526582317 is 71328562582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21135053641 + 7391528676 = 145379^2 + 85974^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28526582317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28526582017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14263291158 + 14263291159.

It is an arithmetic number, because the mean of its divisors is an integer number (14263291159).

Almost surely, 2^28526582317 is an apocalyptic number.

It is an amenable number.

28526582317 is a deficient number, since it is larger than the sum of its proper divisors (1).

28526582317 is an equidigital number, since it uses as much as digits as its factorization.

28526582317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1612800, while the sum is 49.

The spelling of 28526582317 in words is "twenty-eight billion, five hundred twenty-six million, five hundred eighty-two thousand, three hundred seventeen".