6568813394 has 48 divisors (see below), whose sum is σ = 11679655680. Its totient is φ = 2752332000.

The previous prime is 6568813351. The next prime is 6568813411. The reversal of 6568813394 is 4933188656.

Its product of digits (3732480) is a multiple of the sum of its prime divisors (2916).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4526369 + ... + 4527819.

It is an arithmetic number, because the mean of its divisors is an integer number (243326160).

Almost surely, 2^6568813394 is an apocalyptic number.

6568813394 is a deficient number, since it is larger than the sum of its proper divisors (5110842286).

6568813394 is a wasteful number, since it uses less digits than its factorization.

6568813394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2927 (or 2916 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 53.

The square root of 6568813394 is about 81048.2164763667. The cubic root of 6568813394 is about 1872.8182878937.

The spelling of 6568813394 in words is "six billion, five hundred sixty-eight million, eight hundred thirteen thousand, three hundred ninety-four".