12417217345 has 32 divisors (see below), whose sum is σ = 17625888000. Its totient is φ = 8309309184.

The previous prime is 12417217313. The next prime is 12417217357. The reversal of 12417217345 is 54371271421.

12417217345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12417217345 - 2⁵ = 12417217313 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 190170 + ... + 246979.

It is an arithmetic number, because the mean of its divisors is an integer number (550809000).

Almost surely, 2^12417217345 is an apocalyptic number.

It is an amenable number.

12417217345 is a deficient number, since it is larger than the sum of its proper divisors (5208670655).

12417217345 is a wasteful number, since it uses less digits than its factorization.

12417217345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437209.

The product of its digits is 47040, while the sum is 37.

Adding to 12417217345 its reverse (54371271421), we get a palindrome (66788488766).

The spelling of 12417217345 in words is "twelve billion, four hundred seventeen million, two hundred seventeen thousand, three hundred forty-five".