8163889942 has 64 divisors (see below), whose sum is σ = 14245862400. Its totient is φ = 3476805120.

The previous prime is 8163889939. The next prime is 8163889969. The reversal of 8163889942 is 2499883618.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 5594809 + ... + 5596267.

It is an arithmetic number, because the mean of its divisors is an integer number (222591600).

Almost surely, 2^8163889942 is an apocalyptic number.

8163889942 is a deficient number, since it is larger than the sum of its proper divisors (6081972458).

8163889942 is a wasteful number, since it uses less digits than its factorization.

8163889942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1781.

The product of its digits is 5971968, while the sum is 58.

The square root of 8163889942 is about 90354.2469505446. The cubic root of 8163889942 is about 2013.5652787529.

The spelling of 8163889942 in words is "eight billion, one hundred sixty-three million, eight hundred eighty-nine thousand, nine hundred forty-two".