285155086911 has 16 divisors (see below), whose sum is σ = 417618435840. Its totient is φ = 172267603200.

The previous prime is 285155086883. The next prime is 285155086913. The reversal of 285155086911 is 119680551582.

It is not a de Polignac number, because 285155086911 - 2¹⁸ = 285154824767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285155086913) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 108753490 + ... + 108756111.

It is an arithmetic number, because the mean of its divisors is an integer number (26101152240).

Almost surely, 2^285155086911 is an apocalyptic number.

285155086911 is a deficient number, since it is larger than the sum of its proper divisors (132463348929).

285155086911 is a wasteful number, since it uses less digits than its factorization.

285155086911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217509646.

The product of its (nonzero) digits is 864000, while the sum is 51.

The spelling of 285155086911 in words is "two hundred eighty-five billion, one hundred fifty-five million, eighty-six thousand, nine hundred eleven".