998588000000 has 126 divisors (see below), whose sum is σ = 2491572169968. Its totient is φ = 399433600000.

The previous prime is 998587999967. The next prime is 998588000057. The reversal of 998588000000 is 885899.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 3875177 + ... + 4124823.

Almost surely, 2^998588000000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 998588000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1245786084984).

998588000000 is an abundant number, since it is smaller than the sum of its proper divisors (1492984169968).

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

998588000000 is an frugal number, since it uses more digits than its factorization.

998588000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249693 (or 249654 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 47.

Adding to 998588000000 its reverse (885899), we get a palindrome (998588885899).

The spelling of 998588000000 in words is "nine hundred ninety-eight billion, five hundred eighty-eight million", and thus it is an aban number.