28557275582 has 24 divisors (see below), whose sum is σ = 47524184568. Its totient is φ = 12859254320.

The previous prime is 28557275573. The next prime is 28557275587.

It is a happy number.

28557275582 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28557275587) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 525533 + ... + 577320.

It is an arithmetic number, because the mean of its divisors is an integer number (1980174357).

Almost surely, 2^28557275582 is an apocalyptic number.

28557275582 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28557275582 is a deficient number, since it is larger than the sum of its proper divisors (18966908986).

28557275582 is a wasteful number, since it uses less digits than its factorization.

28557275582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102984 (or 1102973 counting only the distinct ones).

The product of its digits is 15680000, while the sum is 56.

The spelling of 28557275582 in words is "twenty-eight billion, five hundred fifty-seven million, two hundred seventy-five thousand, five hundred eighty-two".