305442339782712 has 256 divisors, whose sum is σ = 865505352176640. Its totient is φ = 89014087680000.

The previous prime is 305442339782659. The next prime is 305442339782761. The reversal of 305442339782712 is 217287933244503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5128197412 + ... + 5128256972.

It is an arithmetic number, because the mean of its divisors is an integer number (3380880281940).

Almost surely, 2^{305442339782712} 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 305442339782712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (432752676088320).

305442339782712 is an abundant number, since it is smaller than the sum of its proper divisors (560063012393928).

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

305442339782712 is a wasteful number, since it uses less digits than its factorization.

305442339782712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66366 (or 66362 counting only the distinct ones).

The product of its (nonzero) digits is 60963840, while the sum is 60.

The spelling of 305442339782712 in words is "three hundred five trillion, four hundred forty-two billion, three hundred thirty-nine million, seven hundred eighty-two thousand, seven hundred twelve".