6432278768 has 40 divisors (see below), whose sum is σ = 12779609136. Its totient is φ = 3134476800.

The previous prime is 6432278767. The next prime is 6432278789. The reversal of 6432278768 is 8678722346.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6432278761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 712523 + ... + 721493.

Almost surely, 2^6432278768 is an apocalyptic number.

It is an amenable number.

6432278768 is a deficient number, since it is larger than the sum of its proper divisors (6347330368).

6432278768 is a wasteful number, since it uses less digits than its factorization.

6432278768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10113 (or 10107 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 53.

The square root of 6432278768 is about 80201.4885647392. The cubic root of 6432278768 is about 1859.7516498876.

The spelling of 6432278768 in words is "six billion, four hundred thirty-two million, two hundred seventy-eight thousand, seven hundred sixty-eight".