285656122952 has 36 divisors (see below), whose sum is σ = 538577921385. Its totient is φ = 142039707840.

The previous prime is 285656122949. The next prime is 285656122963. The reversal of 285656122952 is 259221656582.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 257745074596 + 27911048356 = 507686^2 + 167066^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=377926.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 285656122894 and 285656122903.

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, 352226627 + ... + 352227437.

Almost surely, 2^285656122952 is an apocalyptic number.

It is an amenable number.

285656122952 is a deficient number, since it is larger than the sum of its proper divisors (252921798433).

285656122952 is an frugal number, since it uses more digits than its factorization.

285656122952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2094 (or 1046 counting only the distinct ones).

The product of its digits is 5184000, while the sum is 53.

The spelling of 285656122952 in words is "two hundred eighty-five billion, six hundred fifty-six million, one hundred twenty-two thousand, nine hundred fifty-two".