6717438064 has 20 divisors (see below), whose sum is σ = 13022489920. Its totient is φ = 3356795520.

The previous prime is 6717438061. The next prime is 6717438107. The reversal of 6717438064 is 4608347176.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6717438061) 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, 91197 + ... + 147484.

It is an arithmetic number, because the mean of its divisors is an integer number (651124496).

Almost surely, 2^6717438064 is an apocalyptic number.

It is an amenable number.

6717438064 is a deficient number, since it is larger than the sum of its proper divisors (6305051856).

6717438064 is a wasteful number, since it uses less digits than its factorization.

6717438064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240448 (or 240442 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 46.

The square root of 6717438064 is about 81959.9784284989. The cubic root of 6717438064 is about 1886.8377515251.

The spelling of 6717438064 in words is "six billion, seven hundred seventeen million, four hundred thirty-eight thousand, sixty-four".