28185369282 has 96 divisors (see below), whose sum is σ = 73760207040. Its totient is φ = 8052901416.

The previous prime is 28185369259. The next prime is 28185369287. The reversal of 28185369282 is 28296358182.

It is a happy number.

28185369282 is a `hidden beast` number, since 2 + 8 + 18 + 536 + 92 + 8 + 2 = 666.

28185369282 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (28185369287) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 148573 + ... + 280079.

It is an arithmetic number, because the mean of its divisors is an integer number (768335490).

Almost surely, 2^28185369282 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28185369282, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36880103520).

28185369282 is an abundant number, since it is smaller than the sum of its proper divisors (45574837758).

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

28185369282 is an equidigital number, since it uses as much as digits as its factorization.

28185369282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131544 (or 131519 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 54.

The spelling of 28185369282 in words is "twenty-eight billion, one hundred eighty-five million, three hundred sixty-nine thousand, two hundred eighty-two".