839640871216 has 60 divisors (see below), whose sum is σ = 1903736934288. Its totient is φ = 357691264896.

The previous prime is 839640871193. The next prime is 839640871229. The reversal of 839640871216 is 612178046938.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3075571 + ... + 3337426.

Almost surely, 2^839640871216 is an apocalyptic number.

It is an amenable number.

839640871216 is an abundant number, since it is smaller than the sum of its proper divisors (1064096063072).

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

839640871216 is a wasteful number, since it uses less digits than its factorization.

839640871216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6413186 (or 6413173 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 55.

The spelling of 839640871216 in words is "eight hundred thirty-nine billion, six hundred forty million, eight hundred seventy-one thousand, two hundred sixteen".