2143825856 has 14 divisors (see below), whose sum is σ = 4254154560. Its totient is φ = 1071912896.

The previous prime is 2143825847. The next prime is 2143825877. The reversal of 2143825856 is 6585283412.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16748576 + ... + 16748703.

Almost surely, 2^2143825856 is an apocalyptic number.

It is an amenable number.

2143825856 is a deficient number, since it is larger than the sum of its proper divisors (2110328704).

2143825856 is an equidigital number, since it uses as much as digits as its factorization.

2143825856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33497291 (or 33497281 counting only the distinct ones).

The product of its digits is 460800, while the sum is 44.

The square root of 2143825856 is about 46301.4671041858. The cubic root of 2143825856 is about 1289.4262328287.

The spelling of 2143825856 in words is "two billion, one hundred forty-three million, eight hundred twenty-five thousand, eight hundred fifty-six".