285142530865 has 8 divisors (see below), whose sum is σ = 342173936448. Its totient is φ = 228112091760.

The previous prime is 285142530863. The next prime is 285142530949. The reversal of 285142530865 is 568035241582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 285142530865 - 2¹ = 285142530863 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (285142530863) 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, 885174 + ... + 1163536.

It is an arithmetic number, because the mean of its divisors is an integer number (42771742056).

Almost surely, 2^285142530865 is an apocalyptic number.

It is an amenable number.

285142530865 is a deficient number, since it is larger than the sum of its proper divisors (57031405583).

285142530865 is a wasteful number, since it uses less digits than its factorization.

285142530865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483239.

The product of its (nonzero) digits is 2304000, while the sum is 49.

The spelling of 285142530865 in words is "two hundred eighty-five billion, one hundred forty-two million, five hundred thirty thousand, eight hundred sixty-five".