12513724666417 has 4 divisors (see below), whose sum is σ = 13476318871540. Its totient is φ = 11551130461296.

The previous prime is 12513724666411. The next prime is 12513724666423. The reversal of 12513724666417 is 71466642731521.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (12513724666411) and next prime (12513724666423).

It can be written as a sum of positive squares in 2 ways, for example, as 7984642655521 + 4529082010896 = 2825711^2 + 2128164^2 .

It is a cyclic number.

It is not a de Polignac number, because 12513724666417 - 2¹⁵ = 12513724633649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12513724666411) 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, 481297102542 + ... + 481297102567.

It is an arithmetic number, because the mean of its divisors is an integer number (3369079717885).

Almost surely, 2^{12513724666417} is an apocalyptic number.

It is an amenable number.

12513724666417 is a deficient number, since it is larger than the sum of its proper divisors (962594205123).

12513724666417 is an equidigital number, since it uses as much as digits as its factorization.

12513724666417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962594205122.

The product of its digits is 10160640, while the sum is 55.

The spelling of 12513724666417 in words is "twelve trillion, five hundred thirteen billion, seven hundred twenty-four million, six hundred sixty-six thousand, four hundred seventeen".