13461505517 has 4 divisors (see below), whose sum is σ = 13747920576. Its totient is φ = 13175090460.

The previous prime is 13461505487. The next prime is 13461505553. The reversal of 13461505517 is 71550516431.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13461505517 - 2²⁸ = 13193070061 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 (13461505417) 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, 143207459 + ... + 143207552.

It is an arithmetic number, because the mean of its divisors is an integer number (3436980144).

Almost surely, 2^13461505517 is an apocalyptic number.

It is an amenable number.

13461505517 is a deficient number, since it is larger than the sum of its proper divisors (286415059).

13461505517 is an equidigital number, since it uses as much as digits as its factorization.

13461505517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286415058.

The product of its (nonzero) digits is 63000, while the sum is 38.

The spelling of 13461505517 in words is "thirteen billion, four hundred sixty-one million, five hundred five thousand, five hundred seventeen".