2851644044 has 12 divisors (see below), whose sum is σ = 5034540504. Its totient is φ = 1413203904.

The previous prime is 2851644011. The next prime is 2851644049. The reversal of 2851644044 is 4404461582.

It is a junction number, because it is equal to n+sod(n) for n = 2851643989 and 2851644007.

It is not an unprimeable number, because it can be changed into a prime (2851644049) 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, 3154022 + ... + 3154925.

It is an arithmetic number, because the mean of its divisors is an integer number (419545042).

Almost surely, 2^2851644044 is an apocalyptic number.

It is an amenable number.

2851644044 is a deficient number, since it is larger than the sum of its proper divisors (2182896460).

2851644044 is a wasteful number, since it uses less digits than its factorization.

2851644044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6309064 (or 6309062 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 38.

The square root of 2851644044 is about 53400.7869230408. The cubic root of 2851644044 is about 1418.0725094765.

The spelling of 2851644044 in words is "two billion, eight hundred fifty-one million, six hundred forty-four thousand, forty-four".