2688392943 has 16 divisors (see below), whose sum is σ = 4111283200. Its totient is φ = 1734446520.

The previous prime is 2688392893. The next prime is 2688392947. The reversal of 2688392943 is 3492938862.

It is a happy number.

It is not a de Polignac number, because 2688392943 - 2¹⁰ = 2688391919 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2688392943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2688392947) by changing a digit.

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, 1605133 + ... + 1606806.

It is an arithmetic number, because the mean of its divisors is an integer number (256955200).

Almost surely, 2^2688392943 is an apocalyptic number.

2688392943 is a deficient number, since it is larger than the sum of its proper divisors (1422890257).

2688392943 is a wasteful number, since it uses less digits than its factorization.

2688392943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3211979 (or 3211973 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 54.

The square root of 2688392943 is about 51849.7149751086. The cubic root of 2688392943 is about 1390.4784066543.

The spelling of 2688392943 in words is "two billion, six hundred eighty-eight million, three hundred ninety-two thousand, nine hundred forty-three".