839079805922 has 6 divisors (see below), whose sum is σ = 1258621652043. Its totient is φ = 419539255242.

The previous prime is 839079805859. The next prime is 839079805933. The reversal of 839079805922 is 229508970938.

839079805922 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 419539902961 + 419539902961 = 647719^2 + 647719^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=647719.

It is a super-2 number, since 2×839079805922² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 971579 + ... + 1619297.

Almost surely, 2^839079805922 is an apocalyptic number.

839079805922 is a deficient number, since it is larger than the sum of its proper divisors (419541846121).

839079805922 is an frugal number, since it uses more digits than its factorization.

839079805922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295440 (or 647721 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 62.

The spelling of 839079805922 in words is "eight hundred thirty-nine billion, seventy-nine million, eight hundred five thousand, nine hundred twenty-two".