284490342509 has 2 divisors, whose sum is σ = 284490342510. Its totient is φ = 284490342508.

The previous prime is 284490342497. The next prime is 284490342529. The reversal of 284490342509 is 905243094482.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 277555117225 + 6935225284 = 526835^2 + 83278^2 .

It is a cyclic number.

It is not a de Polignac number, because 284490342509 - 2²⁴ = 284473565293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (284490342529) 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 as a sum of consecutive naturals, namely, 142245171254 + 142245171255.

It is an arithmetic number, because the mean of its divisors is an integer number (142245171255).

Almost surely, 2^284490342509 is an apocalyptic number.

It is an amenable number.

284490342509 is a deficient number, since it is larger than the sum of its proper divisors (1).

284490342509 is an equidigital number, since it uses as much as digits as its factorization.

284490342509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2488320, while the sum is 50.

The spelling of 284490342509 in words is "two hundred eighty-four billion, four hundred ninety million, three hundred forty-two thousand, five hundred nine".