2259726291 has 6 divisors (see below), whose sum is σ = 3264049100. Its totient is φ = 1506484188.

The previous prime is 2259726269. The next prime is 2259726299. The reversal of 2259726291 is 1926279522.

It is not a de Polignac number, because 2259726291 - 2¹⁹ = 2259202003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2259726299) 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 5 ways as a sum of consecutive naturals, for example, 125540341 + ... + 125540358.

Almost surely, 2^2259726291 is an apocalyptic number.

2259726291 is a deficient number, since it is larger than the sum of its proper divisors (1004322809).

2259726291 is a wasteful number, since it uses less digits than its factorization.

2259726291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251080705 (or 251080702 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 2259726291 is about 47536.5784528083. The cubic root of 2259726291 is about 1312.2561379859.

The spelling of 2259726291 in words is "two billion, two hundred fifty-nine million, seven hundred twenty-six thousand, two hundred ninety-one".