838778124228 has 24 divisors (see below), whose sum is σ = 2135071589280. Its totient is φ = 254175189120.

The previous prime is 838778124209. The next prime is 838778124251. The reversal of 838778124228 is 822421877838.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3177189733 + ... + 3177189996.

It is an arithmetic number, because the mean of its divisors is an integer number (88961316220).

Almost surely, 2^838778124228 is an apocalyptic number.

It is an amenable number.

838778124228 is an abundant number, since it is smaller than the sum of its proper divisors (1296293465052).

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

838778124228 is a wasteful number, since it uses less digits than its factorization.

838778124228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6354379747 (or 6354379745 counting only the distinct ones).

The product of its digits is 19267584, while the sum is 60.

The spelling of 838778124228 in words is "eight hundred thirty-eight billion, seven hundred seventy-eight million, one hundred twenty-four thousand, two hundred twenty-eight".