838433478068 has 12 divisors (see below), whose sum is σ = 1514589508992. Its totient is φ = 405693618360.

The previous prime is 838433478061. The next prime is 838433478119. The reversal of 838433478068 is 860874334838.

838433478068 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a self number, because there is not a number n which added to its sum of digits gives 838433478068.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838433478061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3380780030 + ... + 3380780277.

It is an arithmetic number, because the mean of its divisors is an integer number (126215792416).

Almost surely, 2^838433478068 is an apocalyptic number.

It is an amenable number.

838433478068 is a deficient number, since it is larger than the sum of its proper divisors (676156030924).

838433478068 is a wasteful number, since it uses less digits than its factorization.

838433478068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6761560342 (or 6761560340 counting only the distinct ones).

The product of its (nonzero) digits is 74317824, while the sum is 62.

The spelling of 838433478068 in words is "eight hundred thirty-eight billion, four hundred thirty-three million, four hundred seventy-eight thousand, sixty-eight".