13490249117517 has 6 divisors (see below), whose sum is σ = 19485915391982. Its totient is φ = 8993499411672.

The previous prime is 13490249117491. The next prime is 13490249117549. The reversal of 13490249117517 is 71571194209431.

13490249117517 is a `hidden beast` number, since 1 + 3 + 4 + 9 + 0 + 2 + 4 + 9 + 117 + 517 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12068321654601 + 1421927462916 = 3473949^2 + 1192446^2 .

It is a de Polignac number, because none of the positive numbers 2^k-13490249117517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13490249118517) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 749458284298 + ... + 749458284315.

Almost surely, 2^{13490249117517} is an apocalyptic number.

It is an amenable number.

13490249117517 is a deficient number, since it is larger than the sum of its proper divisors (5995666274465).

13490249117517 is a wasteful number, since it uses less digits than its factorization.

13490249117517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1498916568619 (or 1498916568616 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 54.

The spelling of 13490249117517 in words is "thirteen trillion, four hundred ninety billion, two hundred forty-nine million, one hundred seventeen thousand, five hundred seventeen".