285811802862388 has 12 divisors (see below), whose sum is σ = 545640714555552. Its totient is φ = 129914455846520.

The previous prime is 285811802862353. The next prime is 285811802862401. The reversal of 285811802862388 is 883268208118582.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3247861396120 + ... + 3247861396207.

It is an arithmetic number, because the mean of its divisors is an integer number (45470059546296).

Almost surely, 2^{285811802862388} is an apocalyptic number.

It is an amenable number.

285811802862388 is a deficient number, since it is larger than the sum of its proper divisors (259828911693164).

285811802862388 is a wasteful number, since it uses less digits than its factorization.

285811802862388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6495722792342 (or 6495722792340 counting only the distinct ones).

The product of its (nonzero) digits is 188743680, while the sum is 70.

The spelling of 285811802862388 in words is "two hundred eighty-five trillion, eight hundred eleven billion, eight hundred two million, eight hundred sixty-two thousand, three hundred eighty-eight".