12486043289 has 4 divisors (see below), whose sum is σ = 12486396624. Its totient is φ = 12485689956.

The previous prime is 12486043267. The next prime is 12486043303. The reversal of 12486043289 is 98234068421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98234068421 = 17 ⋅5778474613.

It is a cyclic number.

It is not a de Polignac number, because 12486043289 - 2²⁰ = 12484994713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12486643289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116927 + ... + 196580.

It is an arithmetic number, because the mean of its divisors is an integer number (3121599156).

Almost surely, 2^12486043289 is an apocalyptic number.

It is an amenable number.

12486043289 is a deficient number, since it is larger than the sum of its proper divisors (353335).

12486043289 is an equidigital number, since it uses as much as digits as its factorization.

12486043289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353334.

The product of its (nonzero) digits is 663552, while the sum is 47.

The spelling of 12486043289 in words is "twelve billion, four hundred eighty-six million, forty-three thousand, two hundred eighty-nine".