28543083678 has 48 divisors (see below), whose sum is σ = 66857703120. Its totient is φ = 8769990528.

The previous prime is 28543083617. The next prime is 28543083683. The reversal of 28543083678 is 87638034582.

28543083678 is a `hidden beast` number, since 28 + 543 + 0 + 8 + 3 + 6 + 78 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1115175 + ... + 1140482.

It is an arithmetic number, because the mean of its divisors is an integer number (1392868815).

Almost surely, 2^28543083678 is an apocalyptic number.

28543083678 is an abundant number, since it is smaller than the sum of its proper divisors (38314619442).

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

28543083678 is a wasteful number, since it uses less digits than its factorization.

28543083678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2255721 (or 2255718 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 54.

The spelling of 28543083678 in words is "twenty-eight billion, five hundred forty-three million, eighty-three thousand, six hundred seventy-eight".