12084478452 has 96 divisors (see below), whose sum is σ = 31837805440. Its totient is φ = 4012812576.

The previous prime is 12084478447. The next prime is 12084478459. The reversal of 12084478452 is 25487448021.

12084478452 is a `hidden beast` number, since 120 + 8 + 4 + 4 + 78 + 452 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 12084478398 and 12084478407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12084478459) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2420703 + ... + 2425689.

Almost surely, 2^12084478452 is an apocalyptic number.

12084478452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12084478452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15918902720).

12084478452 is an abundant number, since it is smaller than the sum of its proper divisors (19753326988).

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

12084478452 is an equidigital number, since it uses as much as digits as its factorization.

12084478452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5289 (or 5269 counting only the distinct ones).

The product of its (nonzero) digits is 573440, while the sum is 45.

The spelling of 12084478452 in words is "twelve billion, eighty-four million, four hundred seventy-eight thousand, four hundred fifty-two".