838114952189 has 4 divisors (see below), whose sum is σ = 838255087740. Its totient is φ = 837974816640.

The previous prime is 838114952183. The next prime is 838114952201. The reversal of 838114952189 is 981259411838.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42326067289 + 795788884900 = 205733^2 + 892070^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-838114952189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838114952183) 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, 70058804 + ... + 70070765.

It is an arithmetic number, because the mean of its divisors is an integer number (209563771935).

Almost surely, 2^838114952189 is an apocalyptic number.

It is an amenable number.

838114952189 is a deficient number, since it is larger than the sum of its proper divisors (140135551).

838114952189 is a wasteful number, since it uses less digits than its factorization.

838114952189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140135550.

The product of its digits is 4976640, while the sum is 59.

The spelling of 838114952189 in words is "eight hundred thirty-eight billion, one hundred fourteen million, nine hundred fifty-two thousand, one hundred eighty-nine".