285663914852 has 12 divisors (see below), whose sum is σ = 501050605440. Its totient is φ = 142506599016.

The previous prime is 285663914843. The next prime is 285663914857. The reversal of 285663914852 is 258419366582.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 285663914791 and 285663914800.

It is not an unprimeable number, because it can be changed into a prime (285663914857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81337628 + ... + 81341139.

It is an arithmetic number, because the mean of its divisors is an integer number (41754217120).

Almost surely, 2^285663914852 is an apocalyptic number.

It is an amenable number.

285663914852 is a deficient number, since it is larger than the sum of its proper divisors (215386690588).

285663914852 is a wasteful number, since it uses less digits than its factorization.

285663914852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162679210 (or 162679208 counting only the distinct ones).

The product of its digits is 24883200, while the sum is 59.

The spelling of 285663914852 in words is "two hundred eighty-five billion, six hundred sixty-three million, nine hundred fourteen thousand, eight hundred fifty-two".