12054597128 has 32 divisors (see below), whose sum is σ = 25839811200. Its totient is φ = 5164549632.

The previous prime is 12054597097. The next prime is 12054597169. The reversal of 12054597128 is 82179545021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143501 + ... + 211427.

It is an arithmetic number, because the mean of its divisors is an integer number (807494100).

Almost surely, 2^12054597128 is an apocalyptic number.

It is an amenable number.

12054597128 is an abundant number, since it is smaller than the sum of its proper divisors (13785214072).

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

12054597128 is a wasteful number, since it uses less digits than its factorization.

12054597128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71109 (or 71105 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 44.

The spelling of 12054597128 in words is "twelve billion, fifty-four million, five hundred ninety-seven thousand, one hundred twenty-eight".