28314247305 has 32 divisors (see below), whose sum is σ = 45556245504. Its totient is φ = 15016657856.

The previous prime is 28314247253. The next prime is 28314247321. The reversal of 28314247305 is 50374241382.

It is a cyclic number.

It is not a de Polignac number, because 28314247305 - 2¹⁰ = 28314246281 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2309602 + ... + 2321828.

It is an arithmetic number, because the mean of its divisors is an integer number (1423632672).

Almost surely, 2^28314247305 is an apocalyptic number.

It is an amenable number.

28314247305 is a deficient number, since it is larger than the sum of its proper divisors (17241998199).

28314247305 is a wasteful number, since it uses less digits than its factorization.

28314247305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13085.

The product of its (nonzero) digits is 161280, while the sum is 39.

Adding to 28314247305 its reverse (50374241382), we get a palindrome (78688488687).

The spelling of 28314247305 in words is "twenty-eight billion, three hundred fourteen million, two hundred forty-seven thousand, three hundred five".