12197511936 has 54 divisors (see below), whose sum is σ = 35168440580. Its totient is φ = 4065836544.

The previous prime is 12197511923. The next prime is 12197511983. The reversal of 12197511936 is 63911579121.

12197511936 is a `hidden beast` number, since 12 + 1 + 97 + 511 + 9 + 36 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 12197511891 and 12197511900.

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 5 ways as a sum of consecutive naturals, for example, 2644726 + ... + 2649333.

Almost surely, 2^12197511936 is an apocalyptic number.

12197511936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12197511936 is an abundant number, since it is smaller than the sum of its proper divisors (22970928644).

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

12197511936 is an equidigital number, since it uses as much as digits as its factorization.

12197511936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5294081 (or 5294064 counting only the distinct ones).

The product of its digits is 102060, while the sum is 45.

The spelling of 12197511936 in words is "twelve billion, one hundred ninety-seven million, five hundred eleven thousand, nine hundred thirty-six".