285389618109 has 8 divisors (see below), whose sum is σ = 389368781472. Its totient is φ = 185835100080.

The previous prime is 285389618099. The next prime is 285389618159. The reversal of 285389618109 is 901816983582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 285389618109 - 2¹³ = 285389609917 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285389618159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1106161182 + ... + 1106161439.

It is an arithmetic number, because the mean of its divisors is an integer number (48671097684).

Almost surely, 2^285389618109 is an apocalyptic number.

It is an amenable number.

285389618109 is a deficient number, since it is larger than the sum of its proper divisors (103979163363).

285389618109 is a wasteful number, since it uses less digits than its factorization.

285389618109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2212322667.

The product of its (nonzero) digits is 7464960, while the sum is 60.

The spelling of 285389618109 in words is "two hundred eighty-five billion, three hundred eighty-nine million, six hundred eighteen thousand, one hundred nine".