12297979791 has 20 divisors (see below), whose sum is σ = 18382304512. Its totient is φ = 8193633408.

The previous prime is 12297979783. The next prime is 12297979817. The reversal of 12297979791 is 19797979221.

12297979791 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12297979791 - 2³ = 12297979783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12297979591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 89055 + ... + 180351.

Almost surely, 2^12297979791 is an apocalyptic number.

12297979791 is a deficient number, since it is larger than the sum of its proper divisors (6084324721).

12297979791 is an equidigital number, since it uses as much as digits as its factorization.

12297979791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92972 (or 92963 counting only the distinct ones).

The product of its digits is 9001692, while the sum is 63.

The spelling of 12297979791 in words is "twelve billion, two hundred ninety-seven million, nine hundred seventy-nine thousand, seven hundred ninety-one".