285945415193 has 2 divisors, whose sum is σ = 285945415194. Its totient is φ = 285945415192.

The previous prime is 285945415187. The next prime is 285945415207. The reversal of 285945415193 is 391514549582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 283676607769 + 2268807424 = 532613^2 + 47632^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-285945415193 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (285945415153) 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, 142972707596 + 142972707597.

It is an arithmetic number, because the mean of its divisors is an integer number (142972707597).

Almost surely, 2^285945415193 is an apocalyptic number.

It is an amenable number.

285945415193 is a deficient number, since it is larger than the sum of its proper divisors (1).

285945415193 is an equidigital number, since it uses as much as digits as its factorization.

285945415193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776000, while the sum is 56.

The spelling of 285945415193 in words is "two hundred eighty-five billion, nine hundred forty-five million, four hundred fifteen thousand, one hundred ninety-three".