998943573582 has 12 divisors (see below), whose sum is σ = 2164377742800. Its totient is φ = 332981191188.

The previous prime is 998943573553. The next prime is 998943573613. The reversal of 998943573582 is 285375349899.

998943573582 is a `hidden beast` number, since 9 + 9 + 8 + 9 + 4 + 35 + 7 + 3 + 582 = 666.

998943573582 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (72) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 998943573582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27748432582 + ... + 27748432617.

It is an arithmetic number, because the mean of its divisors is an integer number (180364811900).

Almost surely, 2^998943573582 is an apocalyptic number.

998943573582 is an abundant number, since it is smaller than the sum of its proper divisors (1165434169218).

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

998943573582 is a wasteful number, since it uses less digits than its factorization.

998943573582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55496865207 (or 55496865204 counting only the distinct ones).

The product of its digits is 587865600, while the sum is 72.

The spelling of 998943573582 in words is "nine hundred ninety-eight billion, nine hundred forty-three million, five hundred seventy-three thousand, five hundred eighty-two".