12643292838818 has 16 divisors (see below), whose sum is σ = 19018053063360. Its totient is φ = 6303942349296.

The previous prime is 12643292838809. The next prime is 12643292838949. The reversal of 12643292838818 is 81883829234621.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93533096 + ... + 93668172.

It is an arithmetic number, because the mean of its divisors is an integer number (1188628316460).

Almost surely, 2^{12643292838818} is an apocalyptic number.

12643292838818 is a deficient number, since it is larger than the sum of its proper divisors (6374760224542).

12643292838818 is a wasteful number, since it uses less digits than its factorization.

12643292838818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265801.

The product of its digits is 63700992, while the sum is 65.

The spelling of 12643292838818 in words is "twelve trillion, six hundred forty-three billion, two hundred ninety-two million, eight hundred thirty-eight thousand, eight hundred eighteen".