6768444064 has 24 divisors (see below), whose sum is σ = 13328703360. Its totient is φ = 3383376576.

The previous prime is 6768444061. The next prime is 6768444079. The reversal of 6768444064 is 4604448676.

It is a junction number, because it is equal to n+sod(n) for n = 6768443999 and 6768444017.

It is not an unprimeable number, because it can be changed into a prime (6768444061) 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, 115377 + ... + 163855.

It is an arithmetic number, because the mean of its divisors is an integer number (555362640).

Almost surely, 2^6768444064 is an apocalyptic number.

It is an amenable number.

6768444064 is a deficient number, since it is larger than the sum of its proper divisors (6560259296).

6768444064 is a wasteful number, since it uses less digits than its factorization.

6768444064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52852 (or 52844 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 49.

The square root of 6768444064 is about 82270.5540518599. The cubic root of 6768444064 is about 1891.6013475019.

The spelling of 6768444064 in words is "six billion, seven hundred sixty-eight million, four hundred forty-four thousand, sixty-four".