6668837974 has 8 divisors (see below), whose sum is σ = 10011802968. Its totient is φ = 3331570320.

The previous prime is 6668837963. The next prime is 6668837977. The reversal of 6668837974 is 4797388666.

It is a happy number.

6668837974 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6668837977) 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, 1421407 + ... + 1426090.

It is an arithmetic number, because the mean of its divisors is an integer number (1251475371).

Almost surely, 2^6668837974 is an apocalyptic number.

6668837974 is a deficient number, since it is larger than the sum of its proper divisors (3342964994).

6668837974 is a wasteful number, since it uses less digits than its factorization.

6668837974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2848670.

The product of its digits is 73156608, while the sum is 64.

The square root of 6668837974 is about 81662.9534978989. The cubic root of 6668837974 is about 1882.2763634262.

The spelling of 6668837974 in words is "six billion, six hundred sixty-eight million, eight hundred thirty-seven thousand, nine hundred seventy-four".