6432278720 has 112 divisors (see below), whose sum is σ = 17766670080. Its totient is φ = 2172386304.

The previous prime is 6432278719. The next prime is 6432278737. The reversal of 6432278720 is 278722346.

It is a tau number, because it is divible by the number of its divisors (112).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128651 + ... + 171509.

Almost surely, 2^6432278720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6432278720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8883335040).

6432278720 is an abundant number, since it is smaller than the sum of its proper divisors (11334391360).

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

6432278720 is a wasteful number, since it uses less digits than its factorization.

6432278720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42950 (or 42940 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 41.

The square root of 6432278720 is about 80201.4882654929. The cubic root of 6432278720 is about 1859.7516452615.

The spelling of 6432278720 in words is "six billion, four hundred thirty-two million, two hundred seventy-eight thousand, seven hundred twenty".