2853656391 has 16 divisors (see below), whose sum is σ = 3978639360. Its totient is φ = 1815902880.

The previous prime is 2853656389. The next prime is 2853656401. The reversal of 2853656391 is 1936563582.

It is not a de Polignac number, because 2853656391 - 2¹ = 2853656389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2853656391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2853656321) 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 15 ways as a sum of consecutive naturals, for example, 10120 + ... + 76221.

It is an arithmetic number, because the mean of its divisors is an integer number (248664960).

Almost surely, 2^2853656391 is an apocalyptic number.

2853656391 is a deficient number, since it is larger than the sum of its proper divisors (1124982969).

2853656391 is a wasteful number, since it uses less digits than its factorization.

2853656391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86846.

The product of its digits is 1166400, while the sum is 48.

The square root of 2853656391 is about 53419.6255228357. The cubic root of 2853656391 is about 1418.4059993188.

The spelling of 2853656391 in words is "two billion, eight hundred fifty-three million, six hundred fifty-six thousand, three hundred ninety-one".