12447416474917 has 4 divisors (see below), whose sum is σ = 12848946038656. Its totient is φ = 12045886911180.

The previous prime is 12447416474903. The next prime is 12447416474971. The reversal of 12447416474917 is 71947461474421.

12447416474917 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12447416474917 - 2⁴³ = 3651323452709 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 (12447416474117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200764781823 + ... + 200764781884.

It is an arithmetic number, because the mean of its divisors is an integer number (3212236509664).

Almost surely, 2^{12447416474917} is an apocalyptic number.

It is an amenable number.

12447416474917 is a deficient number, since it is larger than the sum of its proper divisors (401529563739).

12447416474917 is an equidigital number, since it uses as much as digits as its factorization.

12447416474917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401529563738.

The product of its digits is 37933056, while the sum is 61.

The spelling of 12447416474917 in words is "twelve trillion, four hundred forty-seven billion, four hundred sixteen million, four hundred seventy-four thousand, nine hundred seventeen".