12409779374 has 8 divisors (see below), whose sum is σ = 19709649648. Its totient is φ = 5839896160.

The previous prime is 12409779359. The next prime is 12409779379. The reversal of 12409779374 is 47397790421.

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

It is a super-2 number, since 2×12409779374² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12409779379) 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 3 ways as a sum of consecutive naturals, for example, 182496722 + ... + 182496789.

It is an arithmetic number, because the mean of its divisors is an integer number (2463706206).

Almost surely, 2^12409779374 is an apocalyptic number.

12409779374 is a deficient number, since it is larger than the sum of its proper divisors (7299870274).

12409779374 is a wasteful number, since it uses less digits than its factorization.

12409779374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364993530.

The product of its (nonzero) digits is 2667168, while the sum is 53.

The spelling of 12409779374 in words is "twelve billion, four hundred nine million, seven hundred seventy-nine thousand, three hundred seventy-four".