12838324338 has 64 divisors (see below), whose sum is σ = 32805457920. Its totient is φ = 3645571536.

The previous prime is 12838324321. The next prime is 12838324349. The reversal of 12838324338 is 83342383821.

12838324338 is a `hidden beast` number, since 1 + 28 + 383 + 243 + 3 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 12838324293 and 12838324302.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42570 + ... + 165797.

It is an arithmetic number, because the mean of its divisors is an integer number (512585280).

Almost surely, 2^12838324338 is an apocalyptic number.

12838324338 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12838324338 is an abundant number, since it is smaller than the sum of its proper divisors (19967133582).

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

12838324338 is a wasteful number, since it uses less digits than its factorization.

12838324338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208548 (or 208542 counting only the distinct ones).

The product of its digits is 663552, while the sum is 45.

The spelling of 12838324338 in words is "twelve billion, eight hundred thirty-eight million, three hundred twenty-four thousand, three hundred thirty-eight".