284142859866 has 24 divisors (see below), whose sum is σ = 615780366240. Its totient is φ = 94693132296.

The previous prime is 284142859849. The next prime is 284142859873. The reversal of 284142859866 is 668958241482.

284142859866 is a `hidden beast` number, since 2 + 8 + 4 + 14 + 28 + 598 + 6 + 6 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1679926 + ... + 1841313.

It is an arithmetic number, because the mean of its divisors is an integer number (25657515260).

Almost surely, 2^284142859866 is an apocalyptic number.

284142859866 is an abundant number, since it is smaller than the sum of its proper divisors (331637506374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

284142859866 is a wasteful number, since it uses less digits than its factorization.

284142859866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3525730 (or 3525727 counting only the distinct ones).

The product of its digits is 53084160, while the sum is 63.

The spelling of 284142859866 in words is "two hundred eighty-four billion, one hundred forty-two million, eight hundred fifty-nine thousand, eight hundred sixty-six".