12517223809 has 8 divisors (see below), whose sum is σ = 12801179520. Its totient is φ = 12236406000.

The previous prime is 12517223801. The next prime is 12517223813. The reversal of 12517223809 is 90832271521.

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

It is a cyclic number.

It is not a de Polignac number, because 12517223809 - 2³ = 12517223801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12517223801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 776407 + ... + 792364.

It is an arithmetic number, because the mean of its divisors is an integer number (1600147440).

Almost surely, 2^12517223809 is an apocalyptic number.

It is an amenable number.

12517223809 is a deficient number, since it is larger than the sum of its proper divisors (283955711).

12517223809 is a wasteful number, since it uses less digits than its factorization.

12517223809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1568951.

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 12517223809 in words is "twelve billion, five hundred seventeen million, two hundred twenty-three thousand, eight hundred nine".