840623118353 has 8 divisors (see below), whose sum is σ = 850441200840. Its totient is φ = 830813322240.

The previous prime is 840623118341. The next prime is 840623118371. The reversal of 840623118353 is 353811326048.

It can be written as a sum of positive squares in 4 ways, for example, as 65568259969 + 775054858384 = 256063^2 + 880372^2 .

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 840623118353 - 2¹⁰ = 840623117329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (840623118373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1867400 + ... + 2273417.

It is an arithmetic number, because the mean of its divisors is an integer number (106305150105).

Almost surely, 2^840623118353 is an apocalyptic number.

It is an amenable number.

840623118353 is a deficient number, since it is larger than the sum of its proper divisors (9818082487).

840623118353 is a wasteful number, since it uses less digits than its factorization.

840623118353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4143187.

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 840623118353 in words is "eight hundred forty billion, six hundred twenty-three million, one hundred eighteen thousand, three hundred fifty-three".