285075857811 has 8 divisors (see below), whose sum is σ = 380104506304. Its totient is φ = 190048890600.

The previous prime is 285075857791. The next prime is 285075857821. The reversal of 285075857811 is 118758570582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 285075857811 - 2⁹ = 285075857299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (285075857821) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 50736 + ... + 756786.

It is an arithmetic number, because the mean of its divisors is an integer number (47513063288).

Almost surely, 2^285075857811 is an apocalyptic number.

285075857811 is a deficient number, since it is larger than the sum of its proper divisors (95028648493).

285075857811 is a wasteful number, since it uses less digits than its factorization.

285075857811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840641.

The product of its (nonzero) digits is 6272000, while the sum is 57.

The spelling of 285075857811 in words is "two hundred eighty-five billion, seventy-five million, eight hundred fifty-seven thousand, eight hundred eleven".