285343285922 has 18 divisors (see below), whose sum is σ = 429560442129. Its totient is φ = 142158322840.

The previous prime is 285343285889. The next prime is 285343285943. The reversal of 285343285922 is 229582343582.

It can be written as a sum of positive squares in 2 ways, for example, as 263845568281 + 21497717641 = 513659^2 + 146621^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=377719.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 293864897 + ... + 293865867.

Almost surely, 2^285343285922 is an apocalyptic number.

285343285922 is a deficient number, since it is larger than the sum of its proper divisors (144217156207).

285343285922 is an frugal number, since it uses more digits than its factorization.

285343285922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2722 (or 1362 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 53.

The spelling of 285343285922 in words is "two hundred eighty-five billion, three hundred forty-three million, two hundred eighty-five thousand, nine hundred twenty-two".