28078602268 has 12 divisors (see below), whose sum is σ = 51723741160. Its totient is φ = 13300390512.

The previous prime is 28078602229. The next prime is 28078602271. The reversal of 28078602268 is 86220687082.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 184727571 + ... + 184727722.

Almost surely, 2^28078602268 is an apocalyptic number.

It is an amenable number.

28078602268 is a deficient number, since it is larger than the sum of its proper divisors (23645138892).

28078602268 is a wasteful number, since it uses less digits than its factorization.

28078602268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369455316 (or 369455314 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 49.

The spelling of 28078602268 in words is "twenty-eight billion, seventy-eight million, six hundred two thousand, two hundred sixty-eight".