28075333556 has 12 divisors (see below), whose sum is σ = 49137964260. Its totient is φ = 14035915200.

The previous prime is 28075333529. The next prime is 28075333589. The reversal of 28075333556 is 65533357082.

It can be written as a sum of positive squares in 2 ways, for example, as 9615763600 + 18459569956 = 98060^2 + 135866^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28075333556.

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 3 ways as a sum of consecutive naturals, for example, 401495 + ... + 466206.

It is an arithmetic number, because the mean of its divisors is an integer number (4094830355).

Almost surely, 2^28075333556 is an apocalyptic number.

It is an amenable number.

28075333556 is a deficient number, since it is larger than the sum of its proper divisors (21062630704).

28075333556 is a wasteful number, since it uses less digits than its factorization.

28075333556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875794 (or 875792 counting only the distinct ones).

The product of its (nonzero) digits is 2268000, while the sum is 47.

The spelling of 28075333556 in words is "twenty-eight billion, seventy-five million, three hundred thirty-three thousand, five hundred fifty-six".