282006817909 has 4 divisors (see below), whose sum is σ = 282026623500. Its totient is φ = 281987012320.

The previous prime is 282006817903. The next prime is 282006817943. The reversal of 282006817909 is 909718600282.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 216483617284 + 65523200625 = 465278^2 + 255975^2 .

It is a cyclic number.

It is not a de Polignac number, because 282006817909 - 2¹³ = 282006809717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (282006817903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9881422 + ... + 9909919.

It is an arithmetic number, because the mean of its divisors is an integer number (70506655875).

Almost surely, 2^282006817909 is an apocalyptic number.

It is an amenable number.

282006817909 is a deficient number, since it is larger than the sum of its proper divisors (19805591).

282006817909 is a wasteful number, since it uses less digits than its factorization.

282006817909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19805590.

The product of its (nonzero) digits is 870912, while the sum is 52.

The spelling of 282006817909 in words is "two hundred eighty-two billion, six million, eight hundred seventeen thousand, nine hundred nine".