12127974396 has 12 divisors (see below), whose sum is σ = 28298606952. Its totient is φ = 4042658128.

The previous prime is 12127974389. The next prime is 12127974421. The reversal of 12127974396 is 69347972121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505332255 + ... + 505332278.

It is an arithmetic number, because the mean of its divisors is an integer number (2358217246).

Almost surely, 2^12127974396 is an apocalyptic number.

It is an amenable number.

12127974396 is an abundant number, since it is smaller than the sum of its proper divisors (16170632556).

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

12127974396 is a wasteful number, since it uses less digits than its factorization.

12127974396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010664540 (or 1010664538 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 51.

The spelling of 12127974396 in words is "twelve billion, one hundred twenty-seven million, nine hundred seventy-four thousand, three hundred ninety-six".