843420980976 has 320 divisors, whose sum is σ = 2608804454400. Its totient is φ = 229776749568.

The previous prime is 843420980933. The next prime is 843420981001. The reversal of 843420980976 is 679089024348.

It is a super-2 number, since 2×843420980976² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 263320591 + ... + 263323793.

It is an arithmetic number, because the mean of its divisors is an integer number (8152513920).

Almost surely, 2^843420980976 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 843420980976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1304402227200).

843420980976 is an abundant number, since it is smaller than the sum of its proper divisors (1765383473424).

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

843420980976 is a wasteful number, since it uses less digits than its factorization.

843420980976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3676 (or 3670 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 60.

The spelling of 843420980976 in words is "eight hundred forty-three billion, four hundred twenty million, nine hundred eighty thousand, nine hundred seventy-six".