6564073898 has 16 divisors (see below), whose sum is σ = 10435158720. Its totient is φ = 3086053056.

The previous prime is 6564073843. The next prime is 6564073979. The reversal of 6564073898 is 8983704656.

It is a super-2 number, since 2×6564073898² = 86174132276809828808, which contains 22 as substring.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 54668 + ... + 126951.

It is an arithmetic number, because the mean of its divisors is an integer number (652197420).

Almost surely, 2^6564073898 is an apocalyptic number.

6564073898 is a deficient number, since it is larger than the sum of its proper divisors (3871084822).

6564073898 is a wasteful number, since it uses less digits than its factorization.

6564073898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182701.

The product of its (nonzero) digits is 8709120, while the sum is 56.

The square root of 6564073898 is about 81018.9724570733. The cubic root of 6564073898 is about 1872.3677574919.

The spelling of 6564073898 in words is "six billion, five hundred sixty-four million, seventy-three thousand, eight hundred ninety-eight".