284490866749 has 2 divisors, whose sum is σ = 284490866750. Its totient is φ = 284490866748.

The previous prime is 284490866711. The next prime is 284490866801. The reversal of 284490866749 is 947668094482.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 198107778649 + 86383088100 = 445093^2 + 293910^2 .

It is a cyclic number.

It is not a de Polignac number, because 284490866749 - 2¹¹ = 284490864701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (284490846749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142245433374 + 142245433375.

It is an arithmetic number, because the mean of its divisors is an integer number (142245433375).

Almost surely, 2^284490866749 is an apocalyptic number.

It is an amenable number.

284490866749 is a deficient number, since it is larger than the sum of its proper divisors (1).

284490866749 is an equidigital number, since it uses as much as digits as its factorization.

284490866749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 167215104, while the sum is 67.

The spelling of 284490866749 in words is "two hundred eighty-four billion, four hundred ninety million, eight hundred sixty-six thousand, seven hundred forty-nine".