2291783859 has 6 divisors (see below), whose sum is σ = 3310354476. Its totient is φ = 1527855900.

The previous prime is 2291783839. The next prime is 2291783867. The reversal of 2291783859 is 9583871922.

It is a de Polignac number, because none of the positive numbers 2^k-2291783859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2291783839) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 127321317 + ... + 127321334.

It is an arithmetic number, because the mean of its divisors is an integer number (551725746).

Almost surely, 2^2291783859 is an apocalyptic number.

2291783859 is a deficient number, since it is larger than the sum of its proper divisors (1018570617).

2291783859 is a wasteful number, since it uses less digits than its factorization.

2291783859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254642657 (or 254642654 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The square root of 2291783859 is about 47872.5794061695. The cubic root of 2291783859 is about 1318.4324556854.

The spelling of 2291783859 in words is "two billion, two hundred ninety-one million, seven hundred eighty-three thousand, eight hundred fifty-nine".