12653273217 has 8 divisors (see below), whose sum is σ = 18168802624. Its totient is φ = 7786629648.

The previous prime is 12653273207. The next prime is 12653273221. The reversal of 12653273217 is 71237235621.

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

It is a de Polignac number, because none of the positive numbers 2^k-12653273217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 324442903 = 12653273217 / (1 + 2 + 6 + 5 + 3 + 2 + 7 + 3 + 2 + 1 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12653273207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162221413 + ... + 162221490.

It is an arithmetic number, because the mean of its divisors is an integer number (2271100328).

Almost surely, 2^12653273217 is an apocalyptic number.

It is an amenable number.

12653273217 is a deficient number, since it is larger than the sum of its proper divisors (5515529407).

12653273217 is a wasteful number, since it uses less digits than its factorization.

12653273217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324442919.

The product of its digits is 105840, while the sum is 39.

The spelling of 12653273217 in words is "twelve billion, six hundred fifty-three million, two hundred seventy-three thousand, two hundred seventeen".