285134630205 has 32 divisors (see below), whose sum is σ = 478710466560. Its totient is φ = 144647328320.

The previous prime is 285134630189. The next prime is 285134630281. The reversal of 285134630205 is 502036431582.

It is a happy number.

It is not a de Polignac number, because 285134630205 - 2⁴ = 285134630189 is a prime.

It is a Curzon number.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 2246841 + ... + 2370350.

It is an arithmetic number, because the mean of its divisors is an integer number (14959702080).

Almost surely, 2^285134630205 is an apocalyptic number.

It is an amenable number.

285134630205 is a deficient number, since it is larger than the sum of its proper divisors (193575836355).

285134630205 is a wasteful number, since it uses less digits than its factorization.

285134630205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4617401.

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 285134630205 in words is "two hundred eighty-five billion, one hundred thirty-four million, six hundred thirty thousand, two hundred five".