12873834819 has 8 divisors (see below), whose sum is σ = 19072347920. Its totient is φ = 8582556528.

The previous prime is 12873834803. The next prime is 12873834821. The reversal of 12873834819 is 91843837821.

It is a happy number.

12873834819 is a `hidden beast` number, since 1 + 2 + 87 + 3 + 83 + 481 + 9 = 666.

It is not a de Polignac number, because 12873834819 - 2⁴ = 12873834803 is a prime.

It is a super-2 number, since 2×12873834819² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12873834419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238404322 + ... + 238404375.

It is an arithmetic number, because the mean of its divisors is an integer number (2384043490).

Almost surely, 2^12873834819 is an apocalyptic number.

12873834819 is a deficient number, since it is larger than the sum of its proper divisors (6198513101).

12873834819 is an equidigital number, since it uses as much as digits as its factorization.

12873834819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476808706 (or 476808700 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The spelling of 12873834819 in words is "twelve billion, eight hundred seventy-three million, eight hundred thirty-four thousand, eight hundred nineteen".