2268781023 has 4 divisors (see below), whose sum is σ = 3025041368. Its totient is φ = 1512520680.

The previous prime is 2268781003. The next prime is 2268781057. The reversal of 2268781023 is 3201878622.

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

It is not a de Polignac number, because 2268781023 - 2¹² = 2268776927 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 (2268781003) 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, 378130168 + ... + 378130173.

It is an arithmetic number, because the mean of its divisors is an integer number (756260342).

Almost surely, 2^2268781023 is an apocalyptic number.

2268781023 is a deficient number, since it is larger than the sum of its proper divisors (756260345).

2268781023 is an equidigital number, since it uses as much as digits as its factorization.

2268781023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756260344.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 2268781023 is about 47631.7228640745. The cubic root of 2268781023 is about 1314.0065405826.

The spelling of 2268781023 in words is "two billion, two hundred sixty-eight million, seven hundred eighty-one thousand, twenty-three".