6568172904 has 64 divisors (see below), whose sum is σ = 17420149440. Its totient is φ = 2056596480.

The previous prime is 6568172893. The next prime is 6568172917. The reversal of 6568172904 is 4092718656.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 197994 + ... + 228774.

It is an arithmetic number, because the mean of its divisors is an integer number (272189835).

Almost surely, 2^6568172904 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 6568172904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8710074720).

6568172904 is an abundant number, since it is smaller than the sum of its proper divisors (10851976536).

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

6568172904 is a wasteful number, since it uses less digits than its factorization.

6568172904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31330 (or 31326 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 6568172904 is about 81044.2650901345. The cubic root of 6568172904 is about 1872.7574164038.

The spelling of 6568172904 in words is "six billion, five hundred sixty-eight million, one hundred seventy-two thousand, nine hundred four".