842371788717 has 24 divisors (see below), whose sum is σ = 1310618669568. Its totient is φ = 519836724000.

The previous prime is 842371788707. The next prime is 842371788721. The reversal of 842371788717 is 717887173248.

842371788717 is a `hidden beast` number, since 8 + 423 + 71 + 78 + 8 + 71 + 7 = 666.

It is not a de Polignac number, because 842371788717 - 2⁴ = 842371788701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842371788707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65629534 + ... + 65642367.

It is an arithmetic number, because the mean of its divisors is an integer number (54609111232).

Almost surely, 2^842371788717 is an apocalyptic number.

It is an amenable number.

842371788717 is a deficient number, since it is larger than the sum of its proper divisors (468246880851).

842371788717 is a wasteful number, since it uses less digits than its factorization.

842371788717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131271961 (or 131271958 counting only the distinct ones).

The product of its digits is 29503488, while the sum is 63.

The spelling of 842371788717 in words is "eight hundred forty-two billion, three hundred seventy-one million, seven hundred eighty-eight thousand, seven hundred seventeen".