840873037824 has 312 divisors, whose sum is σ = 2654789859072. Its totient is φ = 255287623680.

The previous prime is 840873037819. The next prime is 840873037871. The reversal of 840873037824 is 428730378048.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19405687 + ... + 19448969.

It is an arithmetic number, because the mean of its divisors is an integer number (8508941856).

Almost surely, 2^840873037824 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 840873037824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1327394929536).

840873037824 is an abundant number, since it is smaller than the sum of its proper divisors (1813916821248).

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

840873037824 is a wasteful number, since it uses less digits than its factorization.

840873037824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43361 (or 43336 counting only the distinct ones).

The product of its (nonzero) digits is 7225344, while the sum is 54.

The spelling of 840873037824 in words is "eight hundred forty billion, eight hundred seventy-three million, thirty-seven thousand, eight hundred twenty-four".