285048283221 has 32 divisors (see below), whose sum is σ = 454811723520. Its totient is φ = 175401277632.

The previous prime is 285048283213. The next prime is 285048283231. The reversal of 285048283221 is 122382840582.

285048283221 is a `hidden beast` number, since 28 + 50 + 482 + 83 + 2 + 21 = 666.

It is not a de Polignac number, because 285048283221 - 2³ = 285048283213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285048283231) 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 31 ways as a sum of consecutive naturals, for example, 7064115 + ... + 7104351.

It is an arithmetic number, because the mean of its divisors is an integer number (14212866360).

Almost surely, 2^285048283221 is an apocalyptic number.

It is an amenable number.

285048283221 is a deficient number, since it is larger than the sum of its proper divisors (169763440299).

285048283221 is a wasteful number, since it uses less digits than its factorization.

285048283221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60442 (or 60436 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 45.

The spelling of 285048283221 in words is "two hundred eighty-five billion, forty-eight million, two hundred eighty-three thousand, two hundred twenty-one".