839108468321 has 4 divisors (see below), whose sum is σ = 839170285572. Its totient is φ = 839046651072.

The previous prime is 839108468273. The next prime is 839108468327. The reversal of 839108468321 is 123864801938.

839108468321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 821878230625 + 17230237696 = 906575^2 + 131264^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-839108468321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (839108468327) 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, 30888260 + ... + 30915413.

It is an arithmetic number, because the mean of its divisors is an integer number (209792571393).

Almost surely, 2^839108468321 is an apocalyptic number.

It is an amenable number.

839108468321 is a deficient number, since it is larger than the sum of its proper divisors (61817251).

839108468321 is a wasteful number, since it uses less digits than its factorization.

839108468321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61817250.

The product of its (nonzero) digits is 1990656, while the sum is 53.

The spelling of 839108468321 in words is "eight hundred thirty-nine billion, one hundred eight million, four hundred sixty-eight thousand, three hundred twenty-one".