13218192886651 has 2 divisors, whose sum is σ = 13218192886652. Its totient is φ = 13218192886650.

The previous prime is 13218192886603. The next prime is 13218192886669. The reversal of 13218192886651 is 15668829181231.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13218192886651 - 2⁹ = 13218192886139 is a prime.

It is a super-2 number, since 2×13218192886651² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13218192886651.

It is not a weakly prime, because it can be changed into another prime (13218192886601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6609096443325 + 6609096443326.

It is an arithmetic number, because the mean of its divisors is an integer number (6609096443326).

Almost surely, 2^{13218192886651} is an apocalyptic number.

13218192886651 is a deficient number, since it is larger than the sum of its proper divisors (1).

13218192886651 is an equidigital number, since it uses as much as digits as its factorization.

13218192886651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9953280, while the sum is 61.

The spelling of 13218192886651 in words is "thirteen trillion, two hundred eighteen billion, one hundred ninety-two million, eight hundred eighty-six thousand, six hundred fifty-one".