6891839384 has 32 divisors (see below), whose sum is σ = 13009896000. Its totient is φ = 3422581152.

The previous prime is 6891839371. The next prime is 6891839401. The reversal of 6891839384 is 4839381986.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1456847 + ... + 1461569.

It is an arithmetic number, because the mean of its divisors is an integer number (406559250).

Almost surely, 2^6891839384 is an apocalyptic number.

It is an amenable number.

6891839384 is a deficient number, since it is larger than the sum of its proper divisors (6118056616).

6891839384 is a wasteful number, since it uses less digits than its factorization.

6891839384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5927 (or 5923 counting only the distinct ones).

The product of its digits is 8957952, while the sum is 59.

The square root of 6891839384 is about 83017.1029607755. The cubic root of 6891839384 is about 1903.0274343221.

The spelling of 6891839384 in words is "six billion, eight hundred ninety-one million, eight hundred thirty-nine thousand, three hundred eighty-four".