285949761241 has 4 divisors (see below), whose sum is σ = 289866881332. Its totient is φ = 282032641152.

The previous prime is 285949761191. The next prime is 285949761277. The reversal of 285949761241 is 142167949582.

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 121681671241 + 164268090000 = 348829^2 + 405300^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-285949761241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (285949761941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1958559936 + ... + 1958560081.

It is an arithmetic number, because the mean of its divisors is an integer number (72466720333).

Almost surely, 2^285949761241 is an apocalyptic number.

It is an amenable number.

285949761241 is a deficient number, since it is larger than the sum of its proper divisors (3917120091).

285949761241 is an equidigital number, since it uses as much as digits as its factorization.

285949761241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3917120090.

The product of its digits is 8709120, while the sum is 58.

The spelling of 285949761241 in words is "two hundred eighty-five billion, nine hundred forty-nine million, seven hundred sixty-one thousand, two hundred forty-one".