2646805613 has 16 divisors (see below), whose sum is σ = 2708354880. Its totient is φ = 2586230400.

The previous prime is 2646805589. The next prime is 2646805631. The reversal of 2646805613 is 3165086462.

2646805613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2646805613 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 (2646805813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2494103 + ... + 2495163.

It is an arithmetic number, because the mean of its divisors is an integer number (169272180).

Almost surely, 2^2646805613 is an apocalyptic number.

It is an amenable number.

2646805613 is a deficient number, since it is larger than the sum of its proper divisors (61549267).

2646805613 is a wasteful number, since it uses less digits than its factorization.

2646805613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1468.

The product of its (nonzero) digits is 207360, while the sum is 41.

The square root of 2646805613 is about 51447.1147198752. The cubic root of 2646805613 is about 1383.2712447803.

The spelling of 2646805613 in words is "two billion, six hundred forty-six million, eight hundred five thousand, six hundred thirteen".