840213723853 has 8 divisors (see below), whose sum is σ = 975985965440. Its totient is φ = 708376909680.

The previous prime is 840213723829. The next prime is 840213723859. The reversal of 840213723853 is 358327312048.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 840213723853 - 2⁵ = 840213723821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840213723859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 983856393 + ... + 983857246.

It is an arithmetic number, because the mean of its divisors is an integer number (121998245680).

Almost surely, 2^840213723853 is an apocalyptic number.

It is an amenable number.

840213723853 is a deficient number, since it is larger than the sum of its proper divisors (135772241587).

840213723853 is a wasteful number, since it uses less digits than its factorization.

840213723853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1967713707.

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 840213723853 in words is "eight hundred forty billion, two hundred thirteen million, seven hundred twenty-three thousand, eight hundred fifty-three".