2143682768 has 20 divisors (see below), whose sum is σ = 4155359040. Its totient is φ = 1071332064.

The previous prime is 2143682753. The next prime is 2143682791. The reversal of 2143682768 is 8672863412.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

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, 4121 + ... + 65607.

It is an arithmetic number, because the mean of its divisors is an integer number (207767952).

Almost surely, 2^2143682768 is an apocalyptic number.

It is an amenable number.

2143682768 is a deficient number, since it is larger than the sum of its proper divisors (2011676272).

2143682768 is a wasteful number, since it uses less digits than its factorization.

2143682768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63674 (or 63668 counting only the distinct ones).

The product of its digits is 774144, while the sum is 47.

The square root of 2143682768 is about 46299.9219005821. The cubic root of 2143682768 is about 1289.3975449380.

The spelling of 2143682768 in words is "two billion, one hundred forty-three million, six hundred eighty-two thousand, seven hundred sixty-eight".