12871138158 has 48 divisors (see below), whose sum is σ = 29537020656. Its totient is φ = 4036757760.

The previous prime is 12871138109. The next prime is 12871138171. The reversal of 12871138158 is 85183117821.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1894728 + ... + 1901508.

It is an arithmetic number, because the mean of its divisors is an integer number (615354597).

Almost surely, 2^12871138158 is an apocalyptic number.

12871138158 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12871138158 is an abundant number, since it is smaller than the sum of its proper divisors (16665882498).

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

12871138158 is a wasteful number, since it uses less digits than its factorization.

12871138158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13009 (or 13006 counting only the distinct ones).

The product of its digits is 107520, while the sum is 45.

The spelling of 12871138158 in words is "twelve billion, eight hundred seventy-one million, one hundred thirty-eight thousand, one hundred fifty-eight".