12657301217 has 8 divisors (see below), whose sum is σ = 13813057440. Its totient is φ = 11502393760.

The previous prime is 12657301213. The next prime is 12657301229. The reversal of 12657301217 is 71210375621.

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

It is not a de Polignac number, because 12657301217 - 2² = 12657301213 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12657301213) 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 7 ways as a sum of consecutive naturals, for example, 180803 + ... + 240840.

It is an arithmetic number, because the mean of its divisors is an integer number (1726632180).

Almost surely, 2^12657301217 is an apocalyptic number.

It is an amenable number.

12657301217 is a deficient number, since it is larger than the sum of its proper divisors (1155756223).

12657301217 is a wasteful number, since it uses less digits than its factorization.

12657301217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424383.

The product of its (nonzero) digits is 17640, while the sum is 35.

Adding to 12657301217 its reverse (71210375621), we get a palindrome (83867676838).

The spelling of 12657301217 in words is "twelve billion, six hundred fifty-seven million, three hundred one thousand, two hundred seventeen".