2841561085 has 16 divisors (see below), whose sum is σ = 3848135040. Its totient is φ = 1995327040.

The previous prime is 2841561083. The next prime is 2841561179. The reversal of 2841561085 is 5801651482.

It is a happy number.

It is not a de Polignac number, because 2841561085 - 2¹ = 2841561083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2841561083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 889177 + ... + 892366.

It is an arithmetic number, because the mean of its divisors is an integer number (240508440).

Almost surely, 2^2841561085 is an apocalyptic number.

It is an amenable number.

2841561085 is a deficient number, since it is larger than the sum of its proper divisors (1006573955).

2841561085 is a wasteful number, since it uses less digits than its factorization.

2841561085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1781588.

The product of its (nonzero) digits is 76800, while the sum is 40.

The square root of 2841561085 is about 53306.2949847389. The cubic root of 2841561085 is about 1416.3991762247.

The spelling of 2841561085 in words is "two billion, eight hundred forty-one million, five hundred sixty-one thousand, eighty-five".