998193824544 has 96 divisors (see below), whose sum is σ = 2994816706560. Its totient is φ = 285175832832.

The previous prime is 998193824531. The next prime is 998193824557. The reversal of 998193824544 is 445428391899.

It is an interprime number because it is at equal distance from previous prime (998193824531) and next prime (998193824557).

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×998193824544² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 9721827 + ... + 9823965.

It is an arithmetic number, because the mean of its divisors is an integer number (31196007360).

Almost surely, 2^998193824544 is an apocalyptic number.

It is an amenable number.

998193824544 is an abundant number, since it is smaller than the sum of its proper divisors (1996622882016).

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

998193824544 is a wasteful number, since it uses less digits than its factorization.

998193824544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116702 (or 116694 counting only the distinct ones).

The product of its digits is 89579520, while the sum is 66.

The spelling of 998193824544 in words is "nine hundred ninety-eight billion, one hundred ninety-three million, eight hundred twenty-four thousand, five hundred forty-four".