12196591897 has 8 divisors (see below), whose sum is σ = 13940106752. Its totient is φ = 10453363200.

The previous prime is 12196591879. The next prime is 12196591907. The reversal of 12196591897 is 79819569121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12196591897 - 2¹¹ = 12196589849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12196591817) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 29272 + ... + 158902.

It is an arithmetic number, because the mean of its divisors is an integer number (1742513344).

Almost surely, 2^12196591897 is an apocalyptic number.

It is an amenable number.

12196591897 is a deficient number, since it is larger than the sum of its proper divisors (1743514855).

12196591897 is a wasteful number, since it uses less digits than its factorization.

12196591897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143079.

The product of its digits is 2449440, while the sum is 58.

The spelling of 12196591897 in words is "twelve billion, one hundred ninety-six million, five hundred ninety-one thousand, eight hundred ninety-seven".