13386215651717 has 8 divisors (see below), whose sum is σ = 14177437018776. Its totient is φ = 12595416164352.

The previous prime is 13386215651713. The next prime is 13386215651719. The reversal of 13386215651717 is 71715651268331.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8538089844001 + 4848125807716 = 2922001^2 + 2201846^2 .

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 13386215651717 - 2² = 13386215651713 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 (13386215651713) 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, 105404588 + ... + 105531509.

It is an arithmetic number, because the mean of its divisors is an integer number (1772179627347).

Almost surely, 2^{13386215651717} is an apocalyptic number.

13386215651717 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

13386215651717 is a deficient number, since it is larger than the sum of its proper divisors (791221367059).

13386215651717 is a wasteful number, since it uses less digits than its factorization.

13386215651717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210939847.

The product of its digits is 6350400, while the sum is 56.

The spelling of 13386215651717 in words is "thirteen trillion, three hundred eighty-six billion, two hundred fifteen million, six hundred fifty-one thousand, seven hundred seventeen".