6564578474 has 8 divisors (see below), whose sum is σ = 9847759680. Its totient is φ = 3281991916.

The previous prime is 6564578473. The next prime is 6564578477. The reversal of 6564578474 is 4748754656.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (6564578473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119954 + ... + 165885.

It is an arithmetic number, because the mean of its divisors is an integer number (1230969960).

Almost surely, 2^6564578474 is an apocalyptic number.

6564578474 is a deficient number, since it is larger than the sum of its proper divisors (3283181206).

6564578474 is a wasteful number, since it uses less digits than its factorization.

6564578474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297324.

The product of its digits is 22579200, while the sum is 56.

The square root of 6564578474 is about 81022.0863345298. The cubic root of 6564578474 is about 1872.4157321512.

The spelling of 6564578474 in words is "six billion, five hundred sixty-four million, five hundred seventy-eight thousand, four hundred seventy-four".