2144575856 has 20 divisors (see below), whose sum is σ = 4176650832. Its totient is φ = 1066730496.

The previous prime is 2144575819. The next prime is 2144575871. The reversal of 2144575856 is 6585754412.

It is a self number, because there is not a number n which added to its sum of digits gives 2144575856.

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, 344156 + ... + 350331.

Almost surely, 2^2144575856 is an apocalyptic number.

It is an amenable number.

2144575856 is a deficient number, since it is larger than the sum of its proper divisors (2032074976).

2144575856 is a wasteful number, since it uses less digits than its factorization.

2144575856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694688 (or 694682 counting only the distinct ones).

The product of its digits is 1344000, while the sum is 47.

The square root of 2144575856 is about 46309.5654913755. The cubic root of 2144575856 is about 1289.5765803830.

The spelling of 2144575856 in words is "two billion, one hundred forty-four million, five hundred seventy-five thousand, eight hundred fifty-six".