2645343868 has 12 divisors (see below), whose sum is σ = 4658839192. Its totient is φ = 1314246960.

The previous prime is 2645343839. The next prime is 2645343881. The reversal of 2645343868 is 8683435462.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2105538 + ... + 2106793.

Almost surely, 2^2645343868 is an apocalyptic number.

It is an amenable number.

2645343868 is a deficient number, since it is larger than the sum of its proper divisors (2013495324).

2645343868 is a wasteful number, since it uses less digits than its factorization.

2645343868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4212492 (or 4212490 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 49.

The square root of 2645343868 is about 51432.9064704689. The cubic root of 2645343868 is about 1383.0165525887.

The spelling of 2645343868 in words is "two billion, six hundred forty-five million, three hundred forty-three thousand, eight hundred sixty-eight".