285233782913 has 2 divisors, whose sum is σ = 285233782914. Its totient is φ = 285233782912.

The previous prime is 285233782909. The next prime is 285233782919. The reversal of 285233782913 is 319287332582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190709510209 + 94524272704 = 436703^2 + 307448^2 .

It is a cyclic number.

It is not a de Polignac number, because 285233782913 - 2² = 285233782909 is a prime.

It is not a weakly prime, because it can be changed into another prime (285233782919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142616891456 + 142616891457.

It is an arithmetic number, because the mean of its divisors is an integer number (142616891457).

Almost surely, 2^285233782913 is an apocalyptic number.

It is an amenable number.

285233782913 is a deficient number, since it is larger than the sum of its proper divisors (1).

285233782913 is an equidigital number, since it uses as much as digits as its factorization.

285233782913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4354560, while the sum is 53.

The spelling of 285233782913 in words is "two hundred eighty-five billion, two hundred thirty-three million, seven hundred eighty-two thousand, nine hundred thirteen".