28317733065 has 12 divisors (see below), whose sum is σ = 49084070724. Its totient is φ = 15102790944.

The previous prime is 28317733049. The next prime is 28317733127. The reversal of 28317733065 is 56033771382.

28317733065 is a `hidden beast` number, since 28 + 317 + 7 + 3 + 306 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 16381952064 + 11935781001 = 127992^2 + 109251^2 .

It is not a de Polignac number, because 28317733065 - 2⁴ = 28317733049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 629282957 = 28317733065 / (2 + 8 + 3 + 1 + 7 + 7 + 3 + 3 + 0 + 6 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 28317733065.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 314641434 + ... + 314641523.

It is an arithmetic number, because the mean of its divisors is an integer number (4090339227).

Almost surely, 2^28317733065 is an apocalyptic number.

It is an amenable number.

28317733065 is a deficient number, since it is larger than the sum of its proper divisors (20766337659).

28317733065 is a wasteful number, since it uses less digits than its factorization.

28317733065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629282968 (or 629282965 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The spelling of 28317733065 in words is "twenty-eight billion, three hundred seventeen million, seven hundred thirty-three thousand, sixty-five".