285327631031406 has 32 divisors (see below), whose sum is σ = 571145460980640. Its totient is φ = 95027541825024.

The previous prime is 285327631031357. The next prime is 285327631031419. The reversal of 285327631031406 is 604130136723582.

It is a happy 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 15 ways as a sum of consecutive naturals, for example, 32576946 + ... + 40396938.

It is an arithmetic number, because the mean of its divisors is an integer number (17848295655645).

Almost surely, 2^{285327631031406} is an apocalyptic number.

285327631031406 is an abundant number, since it is smaller than the sum of its proper divisors (285817829949234).

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

285327631031406 is a wasteful number, since it uses less digits than its factorization.

285327631031406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7825220.

The product of its (nonzero) digits is 4354560, while the sum is 51.

Adding to 285327631031406 its reverse (604130136723582), we get a palindrome (889457767754988).

The spelling of 285327631031406 in words is "two hundred eighty-five trillion, three hundred twenty-seven billion, six hundred thirty-one million, thirty-one thousand, four hundred six".