12863545819 has 2 divisors, whose sum is σ = 12863545820. Its totient is φ = 12863545818.

The previous prime is 12863545801. The next prime is 12863545843. The reversal of 12863545819 is 91854536821.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (91854536821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12863545819 - 2¹⁷ = 12863414747 is a prime.

It is a super-2 number, since 2×12863545819² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12863540819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6431772909 + 6431772910.

It is an arithmetic number, because the mean of its divisors is an integer number (6431772910).

Almost surely, 2^12863545819 is an apocalyptic number.

12863545819 is a deficient number, since it is larger than the sum of its proper divisors (1).

12863545819 is an equidigital number, since it uses as much as digits as its factorization.

12863545819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2073600, while the sum is 52.

The spelling of 12863545819 in words is "twelve billion, eight hundred sixty-three million, five hundred forty-five thousand, eight hundred nineteen".