12842568823897 has 2 divisors, whose sum is σ = 12842568823898. Its totient is φ = 12842568823896.

The previous prime is 12842568823853. The next prime is 12842568823901. The reversal of 12842568823897 is 79832886524821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10244634124176 + 2597934699721 = 3200724^2 + 1611811^2 .

It is an emirp because it is prime and its reverse (79832886524821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12842568823897 - 2³¹ = 12840421340249 is a prime.

It is not a weakly prime, because it can be changed into another prime (12842568823807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6421284411948 + 6421284411949.

It is an arithmetic number, because the mean of its divisors is an integer number (6421284411949).

Almost surely, 2^{12842568823897} is an apocalyptic number.

It is an amenable number.

12842568823897 is a deficient number, since it is larger than the sum of its proper divisors (1).

12842568823897 is an equidigital number, since it uses as much as digits as its factorization.

12842568823897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 743178240, while the sum is 73.

The spelling of 12842568823897 in words is "twelve trillion, eight hundred forty-two billion, five hundred sixty-eight million, eight hundred twenty-three thousand, eight hundred ninety-seven".