6432278788 has 24 divisors (see below), whose sum is σ = 12233596760.
Its totient is φ = 2941505280.
The previous prime is 6432278767. The next prime is 6432278789. The reversal of 6432278788 is 8878722346.
It can be written as a sum of positive squares in 4 ways, for example, as 512207424 + 5920071364 = 22632^2 + 76942^2
It is not an unprimeable number, because it can be changed into a prime (6432278789) 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, 561753 + ... + 573088.
Almost surely, 26432278788 is an apocalyptic number.
It is an amenable number.
6432278788 is a deficient number, since it is larger than the sum of its proper divisors (5801317972).
6432278788 is a wasteful number, since it uses less digits than its factorization.
6432278788 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1134967 (or 1134965 counting only the distinct ones).
The product of its digits is 7225344, while the sum is 55.
The square root of 6432278788 is about 80201.4886894252.
The cubic root of 6432278788 is about 1859.7516518151.
The spelling of 6432278788 in words is "six billion, four hundred thirty-two million, two hundred seventy-eight thousand, seven hundred eighty-eight".