840441653368 has 8 divisors (see below), whose sum is σ = 1575828100080. Its totient is φ = 420220826680.

The previous prime is 840441653357. The next prime is 840441653377. The reversal of 840441653368 is 863356144048.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52527603328 + ... + 52527603343.

It is an arithmetic number, because the mean of its divisors is an integer number (196978512510).

Almost surely, 2^840441653368 is an apocalyptic number.

It is an amenable number.

840441653368 is a deficient number, since it is larger than the sum of its proper divisors (735386446712).

840441653368 is a wasteful number, since it uses less digits than its factorization.

840441653368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105055206677 (or 105055206673 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 52.

The spelling of 840441653368 in words is "eight hundred forty billion, four hundred forty-one million, six hundred fifty-three thousand, three hundred sixty-eight".