985844340180 has 960 divisors, whose sum is σ = 4075585113600. Its totient is φ = 193969520640.

The previous prime is 985844340179. The next prime is 985844340233. The reversal of 985844340180 is 81043448589.

It is a happy number.

985844340180 is a `hidden beast` number, since 9 + 8 + 584 + 4 + 3 + 40 + 18 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 106217140 + ... + 106226420.

It is an arithmetic number, because the mean of its divisors is an integer number (4245401160).

Almost surely, 2^985844340180 is an apocalyptic number.

985844340180 is a gapful number since it is divisible by the number (90) 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 985844340180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2037792556800).

985844340180 is an abundant number, since it is smaller than the sum of its proper divisors (3089740773420).

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

985844340180 is a wasteful number, since it uses less digits than its factorization.

985844340180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9374 (or 9363 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 54.

The spelling of 985844340180 in words is "nine hundred eighty-five billion, eight hundred forty-four million, three hundred forty thousand, one hundred eighty".