285272827257 has 16 divisors (see below), whose sum is σ = 416556868032. Its totient is φ = 172219883520.

The previous prime is 285272827243. The next prime is 285272827261. The reversal of 285272827257 is 752728272582.

It is not a de Polignac number, because 285272827257 - 2⁴ = 285272827241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 285272827197 and 285272827206.

It is not an unprimeable number, because it can be changed into a prime (285272827297) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16809868 + ... + 16826829.

It is an arithmetic number, because the mean of its divisors is an integer number (26034804252).

Almost surely, 2^285272827257 is an apocalyptic number.

It is an amenable number.

285272827257 is a deficient number, since it is larger than the sum of its proper divisors (131284040775).

285272827257 is a wasteful number, since it uses less digits than its factorization.

285272827257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33636968.

The product of its digits is 17561600, while the sum is 57.

The spelling of 285272827257 in words is "two hundred eighty-five billion, two hundred seventy-two million, eight hundred twenty-seven thousand, two hundred fifty-seven".