284189684285 has 12 divisors (see below), whose sum is σ = 369278431092. Its totient is φ = 209863150848.

The previous prime is 284189684243. The next prime is 284189684353. The reversal of 284189684285 is 582486981482.

It can be written as a sum of positive squares in 6 ways, for example, as 41402889529 + 242786794756 = 203477^2 + 492734^2 .

It is not a de Polignac number, because 284189684285 - 2³⁴ = 267009815101 is a prime.

It is a super-2 number, since 2×284189684285² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (65).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 168158732 + ... + 168160421.

It is an arithmetic number, because the mean of its divisors is an integer number (30773202591).

Almost surely, 2^284189684285 is an apocalyptic number.

It is an amenable number.

284189684285 is a deficient number, since it is larger than the sum of its proper divisors (85088746807).

284189684285 is a wasteful number, since it uses less digits than its factorization.

284189684285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336319184 (or 336319171 counting only the distinct ones).

The product of its digits is 70778880, while the sum is 65.

The spelling of 284189684285 in words is "two hundred eighty-four billion, one hundred eighty-nine million, six hundred eighty-four thousand, two hundred eighty-five".