12196511928 has 32 divisors (see below), whose sum is σ = 33879200400. Its totient is φ = 4065503904.

The previous prime is 12196511923. The next prime is 12196511947. The reversal of 12196511928 is 82911569121.

12196511928 is a `hidden beast` number, since 1 + 21 + 96 + 511 + 9 + 28 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12196511923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28232451 + ... + 28232882.

Almost surely, 2^12196511928 is an apocalyptic number.

12196511928 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12196511928 is an abundant number, since it is smaller than the sum of its proper divisors (21682688472).

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

12196511928 is a wasteful number, since it uses less digits than its factorization.

12196511928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56465348 (or 56465338 counting only the distinct ones).

The product of its digits is 77760, while the sum is 45.

The spelling of 12196511928 in words is "twelve billion, one hundred ninety-six million, five hundred eleven thousand, nine hundred twenty-eight".