2268539291 has 4 divisors (see below), whose sum is σ = 2291926392. Its totient is φ = 2245152192.

The previous prime is 2268539269. The next prime is 2268539303. The reversal of 2268539291 is 1929358622.

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

It is a cyclic number.

It is not a de Polignac number, because 2268539291 - 2¹⁸ = 2268277147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2268539201) 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 3 ways as a sum of consecutive naturals, for example, 11693405 + ... + 11693598.

It is an arithmetic number, because the mean of its divisors is an integer number (572981598).

Almost surely, 2^2268539291 is an apocalyptic number.

2268539291 is a deficient number, since it is larger than the sum of its proper divisors (23387101).

2268539291 is an equidigital number, since it uses as much as digits as its factorization.

2268539291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23387100.

The product of its digits is 466560, while the sum is 47.

The square root of 2268539291 is about 47629.1852859148. The cubic root of 2268539291 is about 1313.9598710704.

The spelling of 2268539291 in words is "two billion, two hundred sixty-eight million, five hundred thirty-nine thousand, two hundred ninety-one".