6684906394 has 8 divisors (see below), whose sum is σ = 10047456000. Its totient is φ = 3335754396.

The previous prime is 6684906391. The next prime is 6684906407. The reversal of 6684906394 is 4936094866.

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

It is not an unprimeable number, because it can be changed into a prime (6684906391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3348154 + ... + 3350149.

It is an arithmetic number, because the mean of its divisors is an integer number (1255932000).

Almost surely, 2^6684906394 is an apocalyptic number.

6684906394 is a deficient number, since it is larger than the sum of its proper divisors (3362549606).

6684906394 is a wasteful number, since it uses less digits than its factorization.

6684906394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6698804.

The product of its (nonzero) digits is 6718464, while the sum is 55.

The square root of 6684906394 is about 81761.2768613602. The cubic root of 6684906394 is about 1883.7869188395.

The spelling of 6684906394 in words is "six billion, six hundred eighty-four million, nine hundred six thousand, three hundred ninety-four".