12816518134 has 32 divisors (see below), whose sum is σ = 23752638720. Its totient is φ = 5063054688.

The previous prime is 12816518087. The next prime is 12816518159. The reversal of 12816518134 is 43181561821.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 641272 + ... + 660955.

It is an arithmetic number, because the mean of its divisors is an integer number (742269960).

Almost surely, 2^12816518134 is an apocalyptic number.

12816518134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12816518134 is a deficient number, since it is larger than the sum of its proper divisors (10936120586).

12816518134 is a wasteful number, since it uses less digits than its factorization.

12816518134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302292.

The product of its digits is 46080, while the sum is 40.

The spelling of 12816518134 in words is "twelve billion, eight hundred sixteen million, five hundred eighteen thousand, one hundred thirty-four".