284667133337989 has 2 divisors, whose sum is σ = 284667133337990. Its totient is φ = 284667133337988.

The previous prime is 284667133337971. The next prime is 284667133338001. The reversal of 284667133337989 is 989733331766482.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 242512629315489 + 42154504022500 = 15572817^2 + 6492650^2 .

It is a cyclic number.

It is not a de Polignac number, because 284667133337989 - 2⁷ = 284667133337861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (284667133337929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142333566668994 + 142333566668995.

It is an arithmetic number, because the mean of its divisors is an integer number (142333566668995).

Almost surely, 2^{284667133337989} is an apocalyptic number.

It is an amenable number.

284667133337989 is a deficient number, since it is larger than the sum of its proper divisors (1).

284667133337989 is an equidigital number, since it uses as much as digits as its factorization.

284667133337989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5925685248, while the sum is 79.

The spelling of 284667133337989 in words is "two hundred eighty-four trillion, six hundred sixty-seven billion, one hundred thirty-three million, three hundred thirty-seven thousand, nine hundred eighty-nine".