842731294873 has 16 divisors (see below), whose sum is σ = 910466902800. Its totient is φ = 775413964800.

The previous prime is 842731294843. The next prime is 842731294891. The reversal of 842731294873 is 378492137248.

It can be written as a sum of positive squares in 8 ways, for example, as 47233198224 + 795498096649 = 217332^2 + 891907^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-842731294873 is a prime.

It is a super-2 number, since 2×842731294873² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (842731294843) 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 15 ways as a sum of consecutive naturals, for example, 8044213 + ... + 8148301.

It is an arithmetic number, because the mean of its divisors is an integer number (56904181425).

Almost surely, 2^842731294873 is an apocalyptic number.

It is an amenable number.

842731294873 is a deficient number, since it is larger than the sum of its proper divisors (67735607927).

842731294873 is a wasteful number, since it uses less digits than its factorization.

842731294873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106092.

The product of its digits is 16257024, while the sum is 58.

The spelling of 842731294873 in words is "eight hundred forty-two billion, seven hundred thirty-one million, two hundred ninety-four thousand, eight hundred seventy-three".