6395688042 has 16 divisors (see below), whose sum is σ = 12797837472. Its totient is φ = 2130819120.

The previous prime is 6395688041. The next prime is 6395688073. The reversal of 6395688042 is 2408865936.

It is not an unprimeable number, because it can be changed into a prime (6395688041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256309 + ... + 280152.

It is an arithmetic number, because the mean of its divisors is an integer number (799864842).

Almost surely, 2^6395688042 is an apocalyptic number.

6395688042 is an abundant number, since it is smaller than the sum of its proper divisors (6402149430).

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

6395688042 is a wasteful number, since it uses less digits than its factorization.

6395688042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538453.

The product of its (nonzero) digits is 2488320, while the sum is 51.

The square root of 6395688042 is about 79973.0457216680. The cubic root of 6395688042 is about 1856.2184744320.

The spelling of 6395688042 in words is "six billion, three hundred ninety-five million, six hundred eighty-eight thousand, forty-two".