28182551552 has 44 divisors (see below), whose sum is σ = 56453328696. Its totient is φ = 14062325760.

The previous prime is 28182551549. The next prime is 28182551597. The reversal of 28182551552 is 25515528182.

It is a super-2 number, since 2×28182551552² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 474758 + ... + 530810.

Almost surely, 2^28182551552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28182551552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28226664348).

28182551552 is an abundant number, since it is smaller than the sum of its proper divisors (28270777144).

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

28182551552 is an equidigital number, since it uses as much as digits as its factorization.

28182551552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56564 (or 56546 counting only the distinct ones).

The product of its digits is 320000, while the sum is 44.

The spelling of 28182551552 in words is "twenty-eight billion, one hundred eighty-two million, five hundred fifty-one thousand, five hundred fifty-two".