285211038774 has 16 divisors (see below), whose sum is σ = 590091804720. Its totient is φ = 91792058400.

The previous prime is 285211038773. The next prime is 285211038811. The reversal of 285211038774 is 477830112582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285211038773) 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, 819571777 + ... + 819572124.

It is an arithmetic number, because the mean of its divisors is an integer number (36880737795).

Almost surely, 2^285211038774 is an apocalyptic number.

285211038774 is an abundant number, since it is smaller than the sum of its proper divisors (304880765946).

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

285211038774 is a wasteful number, since it uses less digits than its factorization.

285211038774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639143935.

The product of its (nonzero) digits is 752640, while the sum is 48.

The spelling of 285211038774 in words is "two hundred eighty-five billion, two hundred eleven million, thirty-eight thousand, seven hundred seventy-four".