12891316143619 has 2 divisors, whose sum is σ = 12891316143620. Its totient is φ = 12891316143618.

The previous prime is 12891316143547. The next prime is 12891316143623. The reversal of 12891316143619 is 91634161319821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12891316143619 - 2³³ = 12882726209027 is a prime.

It is a super-2 number, since 2×12891316143619² (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 12891316143619.

It is not a weakly prime, because it can be changed into another prime (12891316143659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6445658071809 + 6445658071810.

It is an arithmetic number, because the mean of its divisors is an integer number (6445658071810).

Almost surely, 2^{12891316143619} is an apocalyptic number.

12891316143619 is a deficient number, since it is larger than the sum of its proper divisors (1).

12891316143619 is an equidigital number, since it uses as much as digits as its factorization.

12891316143619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1679616, while the sum is 55.

The spelling of 12891316143619 in words is "twelve trillion, eight hundred ninety-one billion, three hundred sixteen million, one hundred forty-three thousand, six hundred nineteen".