853539358140 has 480 divisors, whose sum is σ = 3185238228480. Its totient is φ = 187199921664.

The previous prime is 853539358121. The next prime is 853539358151. The reversal of 853539358140 is 41853935358.

853539358140 is a `hidden beast` number, since 8 + 5 + 3 + 53 + 9 + 3 + 581 + 4 + 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 159 ways as a sum of consecutive naturals, for example, 53596219 + ... + 53612141.

It is an arithmetic number, because the mean of its divisors is an integer number (6635912976).

Almost surely, 2^853539358140 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 853539358140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1592619114240).

853539358140 is an abundant number, since it is smaller than the sum of its proper divisors (2331698870340).

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

853539358140 is a wasteful number, since it uses less digits than its factorization.

853539358140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16143 (or 16132 counting only the distinct ones).

The product of its (nonzero) digits is 7776000, while the sum is 54.

The spelling of 853539358140 in words is "eight hundred fifty-three billion, five hundred thirty-nine million, three hundred fifty-eight thousand, one hundred forty".