13886263915385 has 4 divisors (see below), whose sum is σ = 16663516698468. Its totient is φ = 11109011132304.

The previous prime is 13886263915343. The next prime is 13886263915453. The reversal of 13886263915385 is 58351936268831.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7885880528761 + 6000383386624 = 2808181^2 + 2449568^2 .

It is a cyclic number.

It is not a de Polignac number, because 13886263915385 - 2²⁸ = 13885995479929 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1388626391534 + ... + 1388626391543.

It is an arithmetic number, because the mean of its divisors is an integer number (4165879174617).

Almost surely, 2^{13886263915385} is an apocalyptic number.

It is an amenable number.

13886263915385 is a deficient number, since it is larger than the sum of its proper divisors (2777252783083).

13886263915385 is an equidigital number, since it uses as much as digits as its factorization.

13886263915385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2777252783082.

The product of its digits is 223948800, while the sum is 68.

The spelling of 13886263915385 in words is "thirteen trillion, eight hundred eighty-six billion, two hundred sixty-three million, nine hundred fifteen thousand, three hundred eighty-five".