2259091873 has 4 divisors (see below), whose sum is σ = 2296126228. Its totient is φ = 2222057520.

The previous prime is 2259091867. The next prime is 2259091883. The reversal of 2259091873 is 3781909522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1063868689 + 1195223184 = 32617^2 + 34572^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2259091873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2259091843) 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, 18517086 + ... + 18517207.

It is an arithmetic number, because the mean of its divisors is an integer number (574031557).

Almost surely, 2^2259091873 is an apocalyptic number.

It is an amenable number.

2259091873 is a deficient number, since it is larger than the sum of its proper divisors (37034355).

2259091873 is an equidigital number, since it uses as much as digits as its factorization.

2259091873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37034354.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 2259091873 is about 47529.9050388279. The cubic root of 2259091873 is about 1312.1333212182.

The spelling of 2259091873 in words is "two billion, two hundred fifty-nine million, ninety-one thousand, eight hundred seventy-three".