12843187963 has 2 divisors, whose sum is σ = 12843187964. Its totient is φ = 12843187962.

The previous prime is 12843187901. The next prime is 12843188009. The reversal of 12843187963 is 36978134821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12843187963 - 2⁹ = 12843187451 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12843187963.

It is not a weakly prime, because it can be changed into another prime (12843157963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6421593981 + 6421593982.

It is an arithmetic number, because the mean of its divisors is an integer number (6421593982).

Almost surely, 2^12843187963 is an apocalyptic number.

12843187963 is a deficient number, since it is larger than the sum of its proper divisors (1).

12843187963 is an equidigital number, since it uses as much as digits as its factorization.

12843187963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 52.

The spelling of 12843187963 in words is "twelve billion, eight hundred forty-three million, one hundred eighty-seven thousand, nine hundred sixty-three".