28196282556 has 72 divisors (see below), whose sum is σ = 77158658304. Its totient is φ = 8630328960.

The previous prime is 28196282509. The next prime is 28196282563. The reversal of 28196282556 is 65528269182.

28196282556 is a `hidden beast` number, since 2 + 8 + 1 + 9 + 6 + 2 + 82 + 556 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68331 + ... + 247106.

It is an arithmetic number, because the mean of its divisors is an integer number (1071648032).

Almost surely, 2^28196282556 is an apocalyptic number.

28196282556 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

28196282556 is an abundant number, since it is smaller than the sum of its proper divisors (48962375748).

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

28196282556 is a wasteful number, since it uses less digits than its factorization.

28196282556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315651 (or 315646 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 54.

The spelling of 28196282556 in words is "twenty-eight billion, one hundred ninety-six million, two hundred eighty-two thousand, five hundred fifty-six".