6432278766 has 32 divisors (see below), whose sum is σ = 13131072000. Its totient is φ = 2099943360.

The previous prime is 6432278761. The next prime is 6432278767. The reversal of 6432278766 is 6678722346.

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 15 ways as a sum of consecutive naturals, for example, 62410 + ... + 129458.

It is an arithmetic number, because the mean of its divisors is an integer number (410346000).

Almost surely, 2^6432278766 is an apocalyptic number.

6432278766 is an abundant number, since it is smaller than the sum of its proper divisors (6698793234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6432278766 is a wasteful number, since it uses less digits than its factorization.

6432278766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67384.

The product of its digits is 4064256, while the sum is 51.

The square root of 6432278766 is about 80201.4885522706. The cubic root of 6432278766 is about 1859.7516496948.

The spelling of 6432278766 in words is "six billion, four hundred thirty-two million, two hundred seventy-eight thousand, seven hundred sixty-six".