838421333338 has 16 divisors (see below), whose sum is σ = 1259012275200. Its totient is φ = 418750713936.

The previous prime is 838421333317. The next prime is 838421333357. The reversal of 838421333338 is 833333124838.

838421333338 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 838421333291 and 838421333300.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13445520 + ... + 13507732.

It is an arithmetic number, because the mean of its divisors is an integer number (78688267200).

Almost surely, 2^838421333338 is an apocalyptic number.

838421333338 is a deficient number, since it is larger than the sum of its proper divisors (420590941862).

838421333338 is a wasteful number, since it uses less digits than its factorization.

838421333338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69501.

The product of its digits is 2985984, while the sum is 49.

The spelling of 838421333338 in words is "eight hundred thirty-eight billion, four hundred twenty-one million, three hundred thirty-three thousand, three hundred thirty-eight".