28275256944 has 60 divisors (see below), whose sum is σ = 86325221112. Its totient is φ = 8568259200.

The previous prime is 28275256903. The next prime is 28275256949. The reversal of 28275256944 is 44965257282.

28275256944 is a `hidden beast` number, since 2 + 8 + 2 + 75 + 2 + 569 + 4 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28275256949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8923687 + ... + 8926854.

Almost surely, 2^28275256944 is an apocalyptic number.

28275256944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28275256944 is an abundant number, since it is smaller than the sum of its proper divisors (58049964168).

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

28275256944 is a wasteful number, since it uses less digits than its factorization.

28275256944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17850566 (or 17850557 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 54.

The spelling of 28275256944 in words is "twenty-eight billion, two hundred seventy-five million, two hundred fifty-six thousand, nine hundred forty-four".