6432249888 has 72 divisors (see below), whose sum is σ = 18303342876. Its totient is φ = 2142720000.

The previous prime is 6432249883. The next prime is 6432249913. The reversal of 6432249888 is 8889422346.

It can be written as a sum of positive squares in 2 ways, for example, as 5970343824 + 461906064 = 77268^2 + 21492^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (6432249883) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 512488 + ... + 524888.

Almost surely, 2^6432249888 is an apocalyptic number.

It is an amenable number.

6432249888 is an abundant number, since it is smaller than the sum of its proper divisors (11871092988).

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

6432249888 is a wasteful number, since it uses less digits than its factorization.

6432249888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14218 (or 14207 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 54.

The square root of 6432249888 is about 80201.3085180036. The cubic root of 6432249888 is about 1859.7488665449.

The spelling of 6432249888 in words is "six billion, four hundred thirty-two million, two hundred forty-nine thousand, eight hundred eighty-eight".