2279626643 has 16 divisors (see below), whose sum is σ = 2622928896. Its totient is φ = 1940777280.

The previous prime is 2279626621. The next prime is 2279626649. The reversal of 2279626643 is 3466269722.

2279626643 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 not a de Polignac number, because 2279626643 - 2⁸ = 2279626387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2279626649) 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, 811880 + ... + 814682.

It is an arithmetic number, because the mean of its divisors is an integer number (163933056).

Almost surely, 2^2279626643 is an apocalyptic number.

2279626643 is a deficient number, since it is larger than the sum of its proper divisors (343302253).

2279626643 is a wasteful number, since it uses less digits than its factorization.

2279626643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3554.

The product of its digits is 1306368, while the sum is 47.

The square root of 2279626643 is about 47745.4358342240. The cubic root of 2279626643 is about 1316.0970268952.

The spelling of 2279626643 in words is "two billion, two hundred seventy-nine million, six hundred twenty-six thousand, six hundred forty-three".