6839905637966 has 8 divisors (see below), whose sum is σ = 10270359850320. Its totient is φ = 3416452354528.

The previous prime is 6839905637879. The next prime is 6839905637989. The reversal of 6839905637966 is 6697365099386.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1750229786 + ... + 1750233693.

It is an arithmetic number, because the mean of its divisors is an integer number (1283794981290).

Almost surely, 2^{6839905637966} is an apocalyptic number.

6839905637966 is a deficient number, since it is larger than the sum of its proper divisors (3430454212354).

6839905637966 is a wasteful number, since it uses less digits than its factorization.

6839905637966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3500464458.

The product of its (nonzero) digits is 2380855680, while the sum is 77.

The spelling of 6839905637966 in words is "six trillion, eight hundred thirty-nine billion, nine hundred five million, six hundred thirty-seven thousand, nine hundred sixty-six".