6564842468 has 24 divisors (see below), whose sum is σ = 12180559104. Its totient is φ = 3085200000.

The previous prime is 6564842461. The next prime is 6564842483. The reversal of 6564842468 is 8642484656.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (6564842461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13208 + ... + 115343.

It is an arithmetic number, because the mean of its divisors is an integer number (507523296).

Almost surely, 2^6564842468 is an apocalyptic number.

6564842468 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

6564842468 is a deficient number, since it is larger than the sum of its proper divisors (5615716636).

6564842468 is a wasteful number, since it uses less digits than its factorization.

6564842468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129323 (or 129321 counting only the distinct ones).

The product of its digits is 8847360, while the sum is 53.

The square root of 6564842468 is about 81023.7154665225. The cubic root of 6564842468 is about 1872.4408314979.

The spelling of 6564842468 in words is "six billion, five hundred sixty-four million, eight hundred forty-two thousand, four hundred sixty-eight".