12548218738 has 48 divisors (see below), whose sum is σ = 21843968544. Its totient is φ = 5360445440.

The previous prime is 12548218729. The next prime is 12548218751. The reversal of 12548218738 is 83781284521.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12548218691 and 12548218700.

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 23 ways as a sum of consecutive naturals, for example, 7393506 + ... + 7395202.

It is an arithmetic number, because the mean of its divisors is an integer number (455082678).

Almost surely, 2^12548218738 is an apocalyptic number.

12548218738 is a deficient number, since it is larger than the sum of its proper divisors (9295749806).

12548218738 is a wasteful number, since it uses less digits than its factorization.

12548218738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2907 (or 2890 counting only the distinct ones).

The product of its digits is 860160, while the sum is 49.

The spelling of 12548218738 in words is "twelve billion, five hundred forty-eight million, two hundred eighteen thousand, seven hundred thirty-eight".