2643268771 has 32 divisors (see below), whose sum is σ = 3381638400. Its totient is φ = 2028862080.

The previous prime is 2643268759. The next prime is 2643268787. The reversal of 2643268771 is 1778623462.

It is a cyclic number.

It is not a de Polignac number, because 2643268771 - 2⁵ = 2643268739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2643268711) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62020 + ... + 95566.

It is an arithmetic number, because the mean of its divisors is an integer number (105676200).

Almost surely, 2^2643268771 is an apocalyptic number.

2643268771 is a deficient number, since it is larger than the sum of its proper divisors (738369629).

2643268771 is a wasteful number, since it uses less digits than its factorization.

2643268771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33619.

The product of its digits is 677376, while the sum is 46.

The square root of 2643268771 is about 51412.7296591029. The cubic root of 2643268771 is about 1382.6548297046.

The spelling of 2643268771 in words is "two billion, six hundred forty-three million, two hundred sixty-eight thousand, seven hundred seventy-one".