28756655955556 has 24 divisors (see below), whose sum is σ = 52913010515904. Its totient is φ = 13648197145440.

The previous prime is 28756655955551. The next prime is 28756655955589. The reversal of 28756655955556 is 65555955665782.

It is not an unprimeable number, because it can be changed into a prime (28756655955551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1193012175 + ... + 1193036278.

It is an arithmetic number, because the mean of its divisors is an integer number (2204708771496).

Almost surely, 2^{28756655955556} is an apocalyptic number.

It is an amenable number.

28756655955556 is a deficient number, since it is larger than the sum of its proper divisors (24156354560348).

28756655955556 is a wasteful number, since it uses less digits than its factorization.

28756655955556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2386048611 (or 2386048609 counting only the distinct ones).

The product of its digits is 17010000000, while the sum is 79.

The spelling of 28756655955556 in words is "twenty-eight trillion, seven hundred fifty-six billion, six hundred fifty-five million, nine hundred fifty-five thousand, five hundred fifty-six".