12479609191 has 8 divisors (see below), whose sum is σ = 14264090624. Its totient is φ = 10695547800.

The previous prime is 12479609183. The next prime is 12479609231. The reversal of 12479609191 is 19190697421.

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

It is not a de Polignac number, because 12479609191 - 2³ = 12479609183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12479601191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38535 + ... + 162616.

It is an arithmetic number, because the mean of its divisors is an integer number (1783011328).

Almost surely, 2^12479609191 is an apocalyptic number.

12479609191 is a deficient number, since it is larger than the sum of its proper divisors (1784481433).

12479609191 is an equidigital number, since it uses as much as digits as its factorization.

12479609191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210021.

The product of its (nonzero) digits is 244944, while the sum is 49.

The spelling of 12479609191 in words is "twelve billion, four hundred seventy-nine million, six hundred nine thousand, one hundred ninety-one".