13218192886647 has 12 divisors (see below), whose sum is σ = 20501686926456. Its totient is φ = 7553253078000.

The previous prime is 13218192886603. The next prime is 13218192886651. The reversal of 13218192886647 is 74668829181231.

It is not a de Polignac number, because 13218192886647 - 2¹² = 13218192882551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13218192886247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44959839604 + ... + 44959839897.

It is an arithmetic number, because the mean of its divisors is an integer number (1708473910538).

Almost surely, 2^{13218192886647} is an apocalyptic number.

13218192886647 is a deficient number, since it is larger than the sum of its proper divisors (7283494039809).

13218192886647 is an equidigital number, since it uses as much as digits as its factorization.

13218192886647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89919679518 (or 89919679511 counting only the distinct ones).

The product of its digits is 55738368, while the sum is 66.

The spelling of 13218192886647 in words is "thirteen trillion, two hundred eighteen billion, one hundred ninety-two million, eight hundred eighty-six thousand, six hundred forty-seven".