98585256840 has 128 divisors (see below), whose sum is σ = 338245632000. Its totient is φ = 22517837568.

The previous prime is 98585256839. The next prime is 98585256859. The reversal of 98585256840 is 4865258589.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (60).

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 31 ways as a sum of consecutive naturals, for example, 1167981 + ... + 1249539.

It is an arithmetic number, because the mean of its divisors is an integer number (2642544000).

Almost surely, 2^98585256840 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 98585256840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169122816000).

98585256840 is an abundant number, since it is smaller than the sum of its proper divisors (239660375160).

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

98585256840 is a wasteful number, since it uses less digits than its factorization.

98585256840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83019 (or 83015 counting only the distinct ones).

The product of its (nonzero) digits is 27648000, while the sum is 60.

The spelling of 98585256840 in words is "ninety-eight billion, five hundred eighty-five million, two hundred fifty-six thousand, eight hundred forty".