998464589824 has 117 divisors (see below), whose sum is σ = 2163893047659. Its totient is φ = 460446105600.

The previous prime is 998464589813. The next prime is 998464589849. The reversal of 998464589824 is 428985464899.

The square root of 998464589824 is 999232.

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

It can be written as a sum of positive squares in 4 ways, for example, as 820691046400 + 177773543424 = 905920^2 + 421632^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 831360424 + ... + 831361624.

Almost surely, 2^998464589824 is an apocalyptic number.

998464589824 is the 999232-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 998464589824

998464589824 is an abundant number, since it is smaller than the sum of its proper divisors (1165428457835).

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

998464589824 is an frugal number, since it uses more digits than its factorization.

998464589824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2452 (or 1216 counting only the distinct ones).

The product of its digits is 1433272320, while the sum is 76.

The spelling of 998464589824 in words is "nine hundred ninety-eight billion, four hundred sixty-four million, five hundred eighty-nine thousand, eight hundred twenty-four".