838768444140 has 48 divisors (see below), whose sum is σ = 2562056340480. Its totient is φ = 203337804480.

The previous prime is 838768444117. The next prime is 838768444183. The reversal of 838768444140 is 41444867838.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 635429980 + ... + 635431299.

It is an arithmetic number, because the mean of its divisors is an integer number (53376173760).

Almost surely, 2^838768444140 is an apocalyptic number.

It is an amenable number.

838768444140 is an abundant number, since it is smaller than the sum of its proper divisors (1723287896340).

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

838768444140 is a wasteful number, since it uses less digits than its factorization.

838768444140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270861302 (or 1270861300 counting only the distinct ones).

The product of its (nonzero) digits is 16515072, while the sum is 57.

The spelling of 838768444140 in words is "eight hundred thirty-eight billion, seven hundred sixty-eight million, four hundred forty-four thousand, one hundred forty".