2178313443 has 12 divisors (see below), whose sum is σ = 3175320720. Its totient is φ = 1438885296.

The previous prime is 2178313439. The next prime is 2178313483. The reversal of 2178313443 is 3443138712.

2178313443 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2178313443 - 2² = 2178313439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2178313398 and 2178313407.

It is not an unprimeable number, because it can be changed into a prime (2178313433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1109271 + ... + 1111232.

It is an arithmetic number, because the mean of its divisors is an integer number (264610060).

Almost surely, 2^2178313443 is an apocalyptic number.

2178313443 is a deficient number, since it is larger than the sum of its proper divisors (997007277).

2178313443 is a wasteful number, since it uses less digits than its factorization.

2178313443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2220618 (or 2220615 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 2178313443 is about 46672.4055840279. The cubic root of 2178313443 is about 1296.3037893099.

The spelling of 2178313443 in words is "two billion, one hundred seventy-eight million, three hundred thirteen thousand, four hundred forty-three".