12586487889 has 8 divisors (see below), whose sum is σ = 17665246240. Its totient is φ = 7949360736.

The previous prime is 12586487821. The next prime is 12586487891. The reversal of 12586487889 is 98878468521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12586487889 - 2⁸ = 12586487633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12586487819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110407732 + ... + 110407845.

It is an arithmetic number, because the mean of its divisors is an integer number (2208155780).

Almost surely, 2^12586487889 is an apocalyptic number.

12586487889 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12586487889 is a deficient number, since it is larger than the sum of its proper divisors (5078758351).

12586487889 is a wasteful number, since it uses less digits than its factorization.

12586487889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220815599.

The product of its digits is 61931520, while the sum is 66.

The spelling of 12586487889 in words is "twelve billion, five hundred eighty-six million, four hundred eighty-seven thousand, eight hundred eighty-nine".