285098194140 has 96 divisors (see below), whose sum is σ = 824874430464. Its totient is φ = 73497953280.

The previous prime is 285098194099. The next prime is 285098194193. The reversal of 285098194140 is 41491890582.

It is a congruent number.

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, 1738777 + ... + 1895663.

It is an arithmetic number, because the mean of its divisors is an integer number (8592441984).

Almost surely, 2^285098194140 is an apocalyptic number.

285098194140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 285098194140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (412437215232).

285098194140 is an abundant number, since it is smaller than the sum of its proper divisors (539776236324).

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

285098194140 is a wasteful number, since it uses less digits than its factorization.

285098194140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157907 (or 157905 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 51.

The spelling of 285098194140 in words is "two hundred eighty-five billion, ninety-eight million, one hundred ninety-four thousand, one hundred forty".