285271042120 has 64 divisors (see below), whose sum is σ = 642991964400. Its totient is φ = 113907363840.

The previous prime is 285271042109. The next prime is 285271042151. The reversal of 285271042120 is 21240172582.

It can be written as a sum of positive squares in 8 ways, for example, as 35109015876 + 250162026244 = 187374^2 + 500162^2 .

It is an unprimeable number.

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, 73502580 + ... + 73506460.

Almost surely, 2^285271042120 is an apocalyptic number.

285271042120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

285271042120 is an abundant number, since it is smaller than the sum of its proper divisors (357720922280).

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

285271042120 is a wasteful number, since it uses less digits than its factorization.

285271042120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6658 (or 6654 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 34.

The spelling of 285271042120 in words is "two hundred eighty-five billion, two hundred seventy-one million, forty-two thousand, one hundred twenty".