285441493109 has 4 divisors (see below), whose sum is σ = 285444893280. Its totient is φ = 285438092940.

The previous prime is 285441493087. The next prime is 285441493147. The reversal of 285441493109 is 901394144582.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 285441493109 - 2²⁴ = 285424715893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285441493189) 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, 1570889 + ... + 1743150.

It is an arithmetic number, because the mean of its divisors is an integer number (71361223320).

Almost surely, 2^285441493109 is an apocalyptic number.

It is an amenable number.

285441493109 is a deficient number, since it is larger than the sum of its proper divisors (3400171).

285441493109 is an equidigital number, since it uses as much as digits as its factorization.

285441493109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3400170.

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 285441493109 in words is "two hundred eighty-five billion, four hundred forty-one million, four hundred ninety-three thousand, one hundred nine".