839984573984772 has 48 divisors (see below), whose sum is σ = 1993192924968000. Its totient is φ = 275247913328640.

The previous prime is 839984573984729. The next prime is 839984573984789. The reversal of 839984573984772 is 277489375489938.

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 15 ways as a sum of consecutive naturals, for example, 157556604 + ... + 162800652.

It is an arithmetic number, because the mean of its divisors is an integer number (41524852603500).

Almost surely, 2^{839984573984772} is an apocalyptic number.

It is an amenable number.

839984573984772 is an abundant number, since it is smaller than the sum of its proper divisors (1153208350983228).

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

839984573984772 is a wasteful number, since it uses less digits than its factorization.

839984573984772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5470356 (or 5470354 counting only the distinct ones).

The product of its digits is 184354652160, while the sum is 93.

The spelling of 839984573984772 in words is "eight hundred thirty-nine trillion, nine hundred eighty-four billion, five hundred seventy-three million, nine hundred eighty-four thousand, seven hundred seventy-two".