226782316305 has 12 divisors (see below), whose sum is σ = 393089348340. Its totient is φ = 120950568672.

The previous prime is 226782316279. The next prime is 226782316339. The reversal of 226782316305 is 503613287622.

226782316305 is a `hidden beast` number, since 2 + 2 + 6 + 7 + 8 + 2 + 3 + 1 + 630 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 158366590209 + 68415726096 = 397953^2 + 261564^2 .

It is not a de Polignac number, because 226782316305 - 2¹¹ = 226782314257 is a prime.

It is a super-2 number, since 2×226782316305² (a number of 24 digits) contains 22 as substring.

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: 5039607029 = 226782316305 / (2 + 2 + 6 + 7 + 8 + 2 + 3 + 1 + 6 + 3 + 0 + 5).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2519803470 + ... + 2519803559.

It is an arithmetic number, because the mean of its divisors is an integer number (32757445695).

Almost surely, 2^226782316305 is an apocalyptic number.

It is an amenable number.

226782316305 is a deficient number, since it is larger than the sum of its proper divisors (166307032035).

226782316305 is a wasteful number, since it uses less digits than its factorization.

226782316305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5039607040 (or 5039607037 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 226782316305 in words is "two hundred twenty-six billion, seven hundred eighty-two million, three hundred sixteen thousand, three hundred five".