2044559791 has 16 divisors (see below), whose sum is σ = 2185275456. Its totient is φ = 1906200576.

The previous prime is 2044559789. The next prime is 2044559813. The reversal of 2044559791 is 1979554402.

It is a cyclic number.

It is not a de Polignac number, because 2044559791 - 2¹ = 2044559789 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 (2044550791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 955675 + ... + 957811.

It is an arithmetic number, because the mean of its divisors is an integer number (136579716).

Almost surely, 2^2044559791 is an apocalyptic number.

2044559791 is a deficient number, since it is larger than the sum of its proper divisors (140715665).

2044559791 is a wasteful number, since it uses less digits than its factorization.

2044559791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2658.

The product of its (nonzero) digits is 453600, while the sum is 46.

The square root of 2044559791 is about 45216.8087219786. The cubic root of 2044559791 is about 1269.2093764685.

The spelling of 2044559791 in words is "two billion, forty-four million, five hundred fifty-nine thousand, seven hundred ninety-one".