839881868112 has 1280 divisors, whose sum is σ = 3123609600000. Its totient is φ = 217768932864.

The previous prime is 839881868087. The next prime is 839881868117. The reversal of 839881868112 is 211868188938.

839881868112 is a `hidden beast` number, since 8 + 398 + 81 + 86 + 81 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 839881868112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (839881868117) by changing a digit.

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 255 ways as a sum of consecutive naturals, for example, 6613242993 + ... + 6613243119.

It is an arithmetic number, because the mean of its divisors is an integer number (2440320000).

Almost surely, 2^839881868112 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 839881868112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1561804800000).

839881868112 is an abundant number, since it is smaller than the sum of its proper divisors (2283727731888).

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

839881868112 is a wasteful number, since it uses less digits than its factorization.

839881868112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225 (or 187 counting only the distinct ones).

The product of its digits is 10616832, while the sum is 63.

The spelling of 839881868112 in words is "eight hundred thirty-nine billion, eight hundred eighty-one million, eight hundred sixty-eight thousand, one hundred twelve".