12538673219 has 2 divisors, whose sum is σ = 12538673220. Its totient is φ = 12538673218.

The previous prime is 12538673197. The next prime is 12538673233. The reversal of 12538673219 is 91237683521.

It is a strong prime.

It is an emirp because it is prime and its reverse (91237683521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12538673219 - 2¹² = 12538669123 is a prime.

It is a super-2 number, since 2×12538673219² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12538673239) 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 as a sum of consecutive naturals, namely, 6269336609 + 6269336610.

It is an arithmetic number, because the mean of its divisors is an integer number (6269336610).

Almost surely, 2^12538673219 is an apocalyptic number.

12538673219 is a deficient number, since it is larger than the sum of its proper divisors (1).

12538673219 is an equidigital number, since it uses as much as digits as its factorization.

12538673219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 47.

The spelling of 12538673219 in words is "twelve billion, five hundred thirty-eight million, six hundred seventy-three thousand, two hundred nineteen".