12843187986 has 32 divisors (see below), whose sum is σ = 26050595328. Its totient is φ = 4220415360.

The previous prime is 12843187963. The next prime is 12843188009. The reversal of 12843187986 is 68978134821.

It is an interprime number because it is at equal distance from previous prime (12843187963) and next prime (12843188009).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1129200 + ... + 1140516.

It is an arithmetic number, because the mean of its divisors is an integer number (814081104).

Almost surely, 2^12843187986 is an apocalyptic number.

12843187986 is an abundant number, since it is smaller than the sum of its proper divisors (13207407342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12843187986 is a wasteful number, since it uses less digits than its factorization.

12843187986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13986.

The product of its digits is 4644864, while the sum is 57.

The spelling of 12843187986 in words is "twelve billion, eight hundred forty-three million, one hundred eighty-seven thousand, nine hundred eighty-six".