6739566838 has 8 divisors (see below), whose sum is σ = 10117112688. Its totient is φ = 3367195944.

The previous prime is 6739566829. The next prime is 6739566851. The reversal of 6739566838 is 8386659376.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×6739566838² = 90843522327738636488, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 1290481 + ... + 1295692.

It is an arithmetic number, because the mean of its divisors is an integer number (1264639086).

Almost surely, 2^6739566838 is an apocalyptic number.

6739566838 is a deficient number, since it is larger than the sum of its proper divisors (3377545850).

6739566838 is a wasteful number, since it uses less digits than its factorization.

6739566838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2587478.

The product of its digits is 39191040, while the sum is 61.

The square root of 6739566838 is about 82094.8648698565. The cubic root of 6739566838 is about 1888.9073719711.

The spelling of 6739566838 in words is "six billion, seven hundred thirty-nine million, five hundred sixty-six thousand, eight hundred thirty-eight".