13305791897687 has 16 divisors (see below), whose sum is σ = 13486160510400. Its totient is φ = 13126668192000.

The previous prime is 13305791897681. The next prime is 13305791897693. The reversal of 13305791897687 is 78679819750331.

It is an interprime number because it is at equal distance from previous prime (13305791897681) and next prime (13305791897693).

It is a cyclic number.

It is not a de Polignac number, because 13305791897687 - 2²⁰ = 13305790849111 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 (13305791897681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136587737 + ... + 136685117.

It is an arithmetic number, because the mean of its divisors is an integer number (842885031900).

Almost surely, 2^{13305791897687} is an apocalyptic number.

13305791897687 is a deficient number, since it is larger than the sum of its proper divisors (180368612713).

13305791897687 is a wasteful number, since it uses less digits than its factorization.

13305791897687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103754.

The product of its (nonzero) digits is 480090240, while the sum is 74.

The spelling of 13305791897687 in words is "thirteen trillion, three hundred five billion, seven hundred ninety-one million, eight hundred ninety-seven thousand, six hundred eighty-seven".