28316477317 has 2 divisors, whose sum is σ = 28316477318. Its totient is φ = 28316477316.

The previous prime is 28316477297. The next prime is 28316477323. The reversal of 28316477317 is 71377461382.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28090095201 + 226382116 = 167601^2 + 15046^2 .

It is a cyclic number.

It is not a de Polignac number, because 28316477317 - 2¹¹ = 28316475269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28316477617) 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, 14158238658 + 14158238659.

It is an arithmetic number, because the mean of its divisors is an integer number (14158238659).

Almost surely, 2^28316477317 is an apocalyptic number.

It is an amenable number.

28316477317 is a deficient number, since it is larger than the sum of its proper divisors (1).

28316477317 is an equidigital number, since it uses as much as digits as its factorization.

28316477317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1185408, while the sum is 49.

The spelling of 28316477317 in words is "twenty-eight billion, three hundred sixteen million, four hundred seventy-seven thousand, three hundred seventeen".