823980200512340 has 96 divisors (see below), whose sum is σ = 1793949492142080. Its totient is φ = 317574355190400.

The previous prime is 823980200512321. The next prime is 823980200512369. The reversal of 823980200512340 is 43215002089328.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 167840291 + ... + 172679829.

It is an arithmetic number, because the mean of its divisors is an integer number (18686973876480).

Almost surely, 2^{823980200512340} 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 823980200512340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (896974746071040).

823980200512340 is an abundant number, since it is smaller than the sum of its proper divisors (969969291629740).

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

823980200512340 is a wasteful number, since it uses less digits than its factorization.

823980200512340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4840773 (or 4840771 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 823980200512340 in words is "eight hundred twenty-three trillion, nine hundred eighty billion, two hundred million, five hundred twelve thousand, three hundred forty".