2143828766 has 32 divisors (see below), whose sum is σ = 3394040832. Its totient is φ = 1014366240.

The previous prime is 2143828751. The next prime is 2143828783. The reversal of 2143828766 is 6678283412.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a self number, because there is not a number n which added to its sum of digits gives 2143828766.

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 15 ways as a sum of consecutive naturals, for example, 578981 + ... + 582671.

It is an arithmetic number, because the mean of its divisors is an integer number (106063776).

Almost surely, 2^2143828766 is an apocalyptic number.

2143828766 is a deficient number, since it is larger than the sum of its proper divisors (1250212066).

2143828766 is a wasteful number, since it uses less digits than its factorization.

2143828766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3944.

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

The square root of 2143828766 is about 46301.4985286654. The cubic root of 2143828766 is about 1289.4268162450.

The spelling of 2143828766 in words is "two billion, one hundred forty-three million, eight hundred twenty-eight thousand, seven hundred sixty-six".