12185028672 has 28 divisors (see below), whose sum is σ = 32239555536. Its totient is φ = 4061676160.

The previous prime is 12185028659. The next prime is 12185028677. The reversal of 12185028672 is 27682058121.

It is not an unprimeable number, because it can be changed into a prime (12185028677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31731654 + ... + 31732037.

Almost surely, 2^12185028672 is an apocalyptic number.

12185028672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12185028672 is an abundant number, since it is smaller than the sum of its proper divisors (20054526864).

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

12185028672 is an equidigital number, since it uses as much as digits as its factorization.

12185028672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63463706 (or 63463696 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 42.

The spelling of 12185028672 in words is "twelve billion, one hundred eighty-five million, twenty-eight thousand, six hundred seventy-two".