8544997664 has 24 divisors (see below), whose sum is σ = 19226245248. Its totient is φ = 3662141760.

The previous prime is 8544997649. The next prime is 8544997673. The reversal of 8544997664 is 4667994458.

It is a junction number, because it is equal to n+sod(n) for n = 8544997597 and 8544997606.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19073432 + ... + 19073879.

It is an arithmetic number, because the mean of its divisors is an integer number (801093552).

Almost surely, 2^8544997664 is an apocalyptic number.

It is an amenable number.

8544997664 is an abundant number, since it is smaller than the sum of its proper divisors (10681247584).

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

8544997664 is a wasteful number, since it uses less digits than its factorization.

8544997664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38147328 (or 38147320 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 62.

The square root of 8544997664 is about 92439.1565517557. The cubic root of 8544997664 is about 2044.4224881525.

The spelling of 8544997664 in words is "eight billion, five hundred forty-four million, nine hundred ninety-seven thousand, six hundred sixty-four".