2771243268 has 12 divisors (see below), whose sum is σ = 6466234320. Its totient is φ = 923747752.

The previous prime is 2771243263. The next prime is 2771243311. The reversal of 2771243268 is 8623421772.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (2771243263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115468458 + ... + 115468481.

It is an arithmetic number, because the mean of its divisors is an integer number (538852860).

Almost surely, 2^2771243268 is an apocalyptic number.

It is an amenable number.

2771243268 is an abundant number, since it is smaller than the sum of its proper divisors (3694991052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2771243268 is a wasteful number, since it uses less digits than its factorization.

2771243268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230936946 (or 230936944 counting only the distinct ones).

The product of its digits is 225792, while the sum is 42.

The square root of 2771243268 is about 52642.5993659128. The cubic root of 2771243268 is about 1404.6179595591.

The spelling of 2771243268 in words is "two billion, seven hundred seventy-one million, two hundred forty-three thousand, two hundred sixty-eight".