8163409842 has 24 divisors (see below), whose sum is σ = 20214158016. Its totient is φ = 2332402776.

The previous prime is 8163409841. The next prime is 8163409879. The reversal of 8163409842 is 2489043618.

It is a happy number.

8163409842 is a `hidden beast` number, since 8 + 1 + 634 + 0 + 9 + 8 + 4 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (8163409841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32394358 + ... + 32394609.

It is an arithmetic number, because the mean of its divisors is an integer number (842256584).

Almost surely, 2^8163409842 is an apocalyptic number.

8163409842 is an abundant number, since it is smaller than the sum of its proper divisors (12050748174).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8163409842 is a wasteful number, since it uses less digits than its factorization.

8163409842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64788982 (or 64788979 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 8163409842 is about 90351.5901464938. The cubic root of 8163409842 is about 2013.5258068979.

The spelling of 8163409842 in words is "eight billion, one hundred sixty-three million, four hundred nine thousand, eight hundred forty-two".