2163707838 has 24 divisors (see below), whose sum is σ = 4705869168. Its totient is φ = 718492032.

The previous prime is 2163707813. The next prime is 2163707857. The reversal of 2163707838 is 8387073612.

2163707838 is a `hidden beast` number, since 2 + 1 + 637 + 0 + 7 + 8 + 3 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2163707793 and 2163707802.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 223795 + ... + 233262.

It is an arithmetic number, because the mean of its divisors is an integer number (196077882).

Almost surely, 2^2163707838 is an apocalyptic number.

2163707838 is an abundant number, since it is smaller than the sum of its proper divisors (2542161330).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2163707838 is a wasteful number, since it uses less digits than its factorization.

2163707838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457328 (or 457325 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 2163707838 is about 46515.6730360854. The cubic root of 2163707838 is about 1293.4000481197.

The spelling of 2163707838 in words is "two billion, one hundred sixty-three million, seven hundred seven thousand, eight hundred thirty-eight".