8285998842 has 160 divisors (see below), whose sum is σ = 21159705600. Its totient is φ = 2400451200.

The previous prime is 8285998823. The next prime is 8285998843. The reversal of 8285998842 is 2488995828.

It is a self number, because there is not a number n which added to its sum of digits gives 8285998842.

It is not an unprimeable number, because it can be changed into a prime (8285998843) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 5632167 + ... + 5633637.

It is an arithmetic number, because the mean of its divisors is an integer number (132248160).

Almost surely, 2^8285998842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8285998842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10579852800).

8285998842 is an abundant number, since it is smaller than the sum of its proper divisors (12873706758).

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

8285998842 is a wasteful number, since it uses less digits than its factorization.

8285998842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634 (or 1625 counting only the distinct ones).

The product of its digits is 26542080, while the sum is 63.

The square root of 8285998842 is about 91027.4620210846. The cubic root of 8285998842 is about 2023.5547349989.

The spelling of 8285998842 in words is "eight billion, two hundred eighty-five million, nine hundred ninety-eight thousand, eight hundred forty-two".