28185182082 has 48 divisors (see below), whose sum is σ = 63336848640. Its totient is φ = 9048866400.

The previous prime is 28185182029. The next prime is 28185182087. The reversal of 28185182082 is 28028158182.

28185182082 is a `hidden beast` number, since 28 + 18 + 518 + 20 + 82 = 666.

It is not an unprimeable number, because it can be changed into a prime (28185182087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1957 + ... + 237432.

It is an arithmetic number, because the mean of its divisors is an integer number (1319517680).

Almost surely, 2^28185182082 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28185182082, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31668424320).

28185182082 is an abundant number, since it is smaller than the sum of its proper divisors (35151666558).

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

28185182082 is a wasteful number, since it uses less digits than its factorization.

28185182082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239639 (or 239636 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 45.

The spelling of 28185182082 in words is "twenty-eight billion, one hundred eighty-five million, one hundred eighty-two thousand, eighty-two".