2643000841 has 4 divisors (see below), whose sum is σ = 2846308612. Its totient is φ = 2439693072.

The previous prime is 2643000809. The next prime is 2643000847. The reversal of 2643000841 is 1480003462.

2643000841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 435974400 + 2207026441 = 20880^2 + 46979^2 .

It is a cyclic number.

It is not a de Polignac number, because 2643000841 - 2⁵ = 2643000809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2643000847) 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, 101653866 + ... + 101653891.

It is an arithmetic number, because the mean of its divisors is an integer number (711577153).

Almost surely, 2^2643000841 is an apocalyptic number.

It is an amenable number.

2643000841 is a deficient number, since it is larger than the sum of its proper divisors (203307771).

2643000841 is a wasteful number, since it uses less digits than its factorization.

2643000841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203307770.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 2643000841 is about 51410.1239154313. The cubic root of 2643000841 is about 1382.6081113850.

The spelling of 2643000841 in words is "two billion, six hundred forty-three million, eight hundred forty-one", and thus it is an aban number.