285857689448 has 16 divisors (see below), whose sum is σ = 536066659680. Its totient is φ = 142906580208.

The previous prime is 285857689441. The next prime is 285857689487. The reversal of 285857689448 is 844986758582.

It is not an unprimeable number, because it can be changed into a prime (285857689441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2728436 + ... + 2831267.

It is an arithmetic number, because the mean of its divisors is an integer number (33504166230).

Almost surely, 2^285857689448 is an apocalyptic number.

It is an amenable number.

285857689448 is a deficient number, since it is larger than the sum of its proper divisors (250208970232).

285857689448 is a wasteful number, since it uses less digits than its factorization.

285857689448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5566136 (or 5566132 counting only the distinct ones).

The product of its digits is 1238630400, while the sum is 74.

The spelling of 285857689448 in words is "two hundred eighty-five billion, eight hundred fifty-seven million, six hundred eighty-nine thousand, four hundred forty-eight".