28051682256 has 240 divisors, whose sum is σ = 87536397312. Its totient is φ = 8336252160.

The previous prime is 28051682233. The next prime is 28051682261. The reversal of 28051682256 is 65228615082.

It is a happy number.

28051682256 is a `hidden beast` number, since 2 + 8 + 0 + 516 + 82 + 2 + 56 = 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 47 ways as a sum of consecutive naturals, for example, 55768501 + ... + 55769003.

Almost surely, 2^28051682256 is an apocalyptic number.

28051682256 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28051682256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43768198656).

28051682256 is an abundant number, since it is smaller than the sum of its proper divisors (59484715056).

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

28051682256 is a wasteful number, since it uses less digits than its factorization.

28051682256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623 (or 552 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The spelling of 28051682256 in words is "twenty-eight billion, fifty-one million, six hundred eighty-two thousand, two hundred fifty-six".