838648684169 has 8 divisors (see below), whose sum is σ = 847822248000. Its totient is φ = 829519979472.

The previous prime is 838648684157. The next prime is 838648684177. The reversal of 838648684169 is 961486846838.

It is a happy number.

838648684169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-838648684169 is a prime.

It is a super-2 number, since 2×838648684169² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (838648684109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11177189 + ... + 11251970.

It is an arithmetic number, because the mean of its divisors is an integer number (105977781000).

Almost surely, 2^838648684169 is an apocalyptic number.

It is an amenable number.

838648684169 is a deficient number, since it is larger than the sum of its proper divisors (9173563831).

838648684169 is a wasteful number, since it uses less digits than its factorization.

838648684169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22429567.

The product of its digits is 382205952, while the sum is 71.

The spelling of 838648684169 in words is "eight hundred thirty-eight billion, six hundred forty-eight million, six hundred eighty-four thousand, one hundred sixty-nine".