28182328452 has 36 divisors (see below), whose sum is σ = 71255686320. Its totient is φ = 9391864752.

The previous prime is 28182328451. The next prime is 28182328507. The reversal of 28182328452 is 25482328182.

28182328452 is a `hidden beast` number, since 281 + 8 + 2 + 328 + 45 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 28182328398 and 28182328407.

It is not an unprimeable number, because it can be changed into a prime (28182328451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62799 + ... + 245577.

It is an arithmetic number, because the mean of its divisors is an integer number (1979324620).

Almost surely, 2^28182328452 is an apocalyptic number.

It is an amenable number.

28182328452 is an abundant number, since it is smaller than the sum of its proper divisors (43073357868).

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

28182328452 is a wasteful number, since it uses less digits than its factorization.

28182328452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187072 (or 187067 counting only the distinct ones).

The product of its digits is 491520, while the sum is 45.

The spelling of 28182328452 in words is "twenty-eight billion, one hundred eighty-two million, three hundred twenty-eight thousand, four hundred fifty-two".