12466912468891 has 2 divisors, whose sum is σ = 12466912468892. Its totient is φ = 12466912468890.

The previous prime is 12466912468889. The next prime is 12466912468951. The reversal of 12466912468891 is 19886421966421.

It is a weak prime.

It is an emirp because it is prime and its reverse (19886421966421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12466912468891 - 2¹ = 12466912468889 is a prime.

Together with 12466912468889, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12466912468831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6233456234445 + 6233456234446.

It is an arithmetic number, because the mean of its divisors is an integer number (6233456234446).

Almost surely, 2^{12466912468891} is an apocalyptic number.

12466912468891 is a deficient number, since it is larger than the sum of its proper divisors (1).

12466912468891 is an equidigital number, since it uses as much as digits as its factorization.

12466912468891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 71663616, while the sum is 67.

The spelling of 12466912468891 in words is "twelve trillion, four hundred sixty-six billion, nine hundred twelve million, four hundred sixty-eight thousand, eight hundred ninety-one".