6423191568 has 80 divisors (see below), whose sum is σ = 19031718400. Its totient is φ = 2071992960.

The previous prime is 6423191557. The next prime is 6423191581. The reversal of 6423191568 is 8651913246.

6423191568 is a `hidden beast` number, since 64 + 23 + 1 + 9 + 1 + 568 = 666.

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, 226423 + ... + 253206.

It is an arithmetic number, because the mean of its divisors is an integer number (237896480).

Almost surely, 2^6423191568 is an apocalyptic number.

It is an amenable number.

6423191568 is an abundant number, since it is smaller than the sum of its proper divisors (12608526832).

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

6423191568 is a wasteful number, since it uses less digits than its factorization.

6423191568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479677 (or 479665 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 6423191568 is about 80144.8162266282. The cubic root of 6423191568 is about 1858.8754492691.

The spelling of 6423191568 in words is "six billion, four hundred twenty-three million, one hundred ninety-one thousand, five hundred sixty-eight".