285534447956 has 12 divisors (see below), whose sum is σ = 501291991200. Its totient is φ = 142308164760.

The previous prime is 285534447931. The next prime is 285534447967. The reversal of 285534447956 is 659744435582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114763406 + ... + 114765893.

It is an arithmetic number, because the mean of its divisors is an integer number (41774332600).

Almost surely, 2^285534447956 is an apocalyptic number.

It is an amenable number.

285534447956 is a deficient number, since it is larger than the sum of its proper divisors (215757543244).

285534447956 is a wasteful number, since it uses less digits than its factorization.

285534447956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229529614 (or 229529612 counting only the distinct ones).

The product of its digits is 145152000, while the sum is 62.

The spelling of 285534447956 in words is "two hundred eighty-five billion, five hundred thirty-four million, four hundred forty-seven thousand, nine hundred fifty-six".