12486484438889 has 2 divisors, whose sum is σ = 12486484438890. Its totient is φ = 12486484438888.

The previous prime is 12486484438867. The next prime is 12486484438919. The reversal of 12486484438889 is 98883448468421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12308400438889 + 178084000000 = 3508333^2 + 422000^2 .

It is a cyclic number.

It is not a de Polignac number, because 12486484438889 - 2¹² = 12486484434793 is a prime.

It is not a weakly prime, because it can be changed into another prime (12486484434889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6243242219444 + 6243242219445.

It is an arithmetic number, because the mean of its divisors is an integer number (6243242219445).

Almost surely, 2^{12486484438889} is an apocalyptic number.

It is an amenable number.

12486484438889 is a deficient number, since it is larger than the sum of its proper divisors (1).

12486484438889 is an equidigital number, since it uses as much as digits as its factorization.

12486484438889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2717908992, while the sum is 77.

The spelling of 12486484438889 in words is "twelve trillion, four hundred eighty-six billion, four hundred eighty-four million, four hundred thirty-eight thousand, eight hundred eighty-nine".