2163834646 has 16 divisors (see below), whose sum is σ = 3447932400. Its totient is φ = 1015568928.

The previous prime is 2163834619. The next prime is 2163834649. The reversal of 2163834646 is 6464383612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163834649) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 257065 + ... + 265348.

It is an arithmetic number, because the mean of its divisors is an integer number (215495775).

Almost surely, 2^2163834646 is an apocalyptic number.

2163834646 is a deficient number, since it is larger than the sum of its proper divisors (1284097754).

2163834646 is a wasteful number, since it uses less digits than its factorization.

2163834646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522543.

The product of its digits is 497664, while the sum is 43.

The square root of 2163834646 is about 46517.0360835684. The cubic root of 2163834646 is about 1293.4253149736.

The spelling of 2163834646 in words is "two billion, one hundred sixty-three million, eight hundred thirty-four thousand, six hundred forty-six".