4564986915889 has 3 divisors (see below), whose sum is σ = 4564989052473. Its totient is φ = 4564984779306.

The previous prime is 4564986915833. The next prime is 4564986915913. The reversal of 4564986915889 is 9885196894654.

The square root of 4564986915889 is 2136583.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 4564986915889 - 2¹⁹ = 4564986391601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4564986915809) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1068292 + ... + 3204874.

It is an arithmetic number, because the mean of its divisors is an integer number (1521663017491).

Almost surely, 2^{4564986915889} is an apocalyptic number.

4564986915889 is the 2136583-rd square number.

4564986915889 is the 1068292-nd centered octagonal number.

It is an amenable number.

4564986915889 is a deficient number, since it is larger than the sum of its proper divisors (2136584).

4564986915889 is an frugal number, since it uses more digits than its factorization.

4564986915889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4273166 (or 2136583 counting only the distinct ones).

The product of its digits is 5374771200, while the sum is 82.

The spelling of 4564986915889 in words is "four trillion, five hundred sixty-four billion, nine hundred eighty-six million, nine hundred fifteen thousand, eight hundred eighty-nine".