6839991273988 has 24 divisors (see below), whose sum is σ = 12533048313408. Its totient is φ = 3260135314656.

The previous prime is 6839991273967. The next prime is 6839991273991. The reversal of 6839991273988 is 8893721999386.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126846306 + ... + 126900217.

It is an arithmetic number, because the mean of its divisors is an integer number (522210346392).

Almost surely, 2^{6839991273988} is an apocalyptic number.

It is an amenable number.

6839991273988 is a deficient number, since it is larger than the sum of its proper divisors (5693057039420).

6839991273988 is a wasteful number, since it uses less digits than its factorization.

6839991273988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253746843 (or 253746841 counting only the distinct ones).

The product of its digits is 2539579392, while the sum is 82.

The spelling of 6839991273988 in words is "six trillion, eight hundred thirty-nine billion, nine hundred ninety-one million, two hundred seventy-three thousand, nine hundred eighty-eight".