285493043441 has 4 divisors (see below), whose sum is σ = 290879704692. Its totient is φ = 280106382192.

The previous prime is 285493043417. The next prime is 285493043461. The reversal of 285493043441 is 144340394582.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 135476261041 + 150016782400 = 368071^2 + 387320^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-285493043441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (285493043461) 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 in 3 ways as a sum of consecutive naturals, for example, 2693330546 + ... + 2693330651.

It is an arithmetic number, because the mean of its divisors is an integer number (72719926173).

Almost surely, 2^285493043441 is an apocalyptic number.

It is an amenable number.

285493043441 is a deficient number, since it is larger than the sum of its proper divisors (5386661251).

285493043441 is an equidigital number, since it uses as much as digits as its factorization.

285493043441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5386661250.

The product of its (nonzero) digits is 1658880, while the sum is 47.

The spelling of 285493043441 in words is "two hundred eighty-five billion, four hundred ninety-three million, forty-three thousand, four hundred forty-one".