28266410317 has 2 divisors, whose sum is σ = 28266410318. Its totient is φ = 28266410316.

The previous prime is 28266410311. The next prime is 28266410351. The reversal of 28266410317 is 71301466282.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26160151081 + 2106259236 = 161741^2 + 45894^2 .

It is a cyclic number.

It is not a de Polignac number, because 28266410317 - 2⁷ = 28266410189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28266410317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28266410311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14133205158 + 14133205159.

It is an arithmetic number, because the mean of its divisors is an integer number (14133205159).

Almost surely, 2^28266410317 is an apocalyptic number.

It is an amenable number.

28266410317 is a deficient number, since it is larger than the sum of its proper divisors (1).

28266410317 is an equidigital number, since it uses as much as digits as its factorization.

28266410317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 40.

Adding to 28266410317 its reverse (71301466282), we get a palindrome (99567876599).

The spelling of 28266410317 in words is "twenty-eight billion, two hundred sixty-six million, four hundred ten thousand, three hundred seventeen".