28556442876 has 48 divisors (see below), whose sum is σ = 71770477184. Its totient is φ = 8784974016.

The previous prime is 28556442853. The next prime is 28556442881. The reversal of 28556442876 is 67824465582.

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 15 ways as a sum of consecutive naturals, for example, 1041495 + ... + 1068561.

Almost surely, 2^28556442876 is an apocalyptic number.

28556442876 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

28556442876 is an abundant number, since it is smaller than the sum of its proper divisors (43214034308).

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

28556442876 is a wasteful number, since it uses less digits than its factorization.

28556442876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33850 (or 33848 counting only the distinct ones).

The product of its digits is 25804800, while the sum is 57.

The spelling of 28556442876 in words is "twenty-eight billion, five hundred fifty-six million, four hundred forty-two thousand, eight hundred seventy-six".