7889208842 has 32 divisors (see below), whose sum is σ = 12720067200. Its totient is φ = 3658722048.

The previous prime is 7889208827. The next prime is 7889208871. The reversal of 7889208842 is 2488029887.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 15 ways as a sum of consecutive naturals, for example, 369659 + ... + 390417.

It is an arithmetic number, because the mean of its divisors is an integer number (397502100).

Almost surely, 2^7889208842 is an apocalyptic number.

7889208842 is a deficient number, since it is larger than the sum of its proper divisors (4830858358).

7889208842 is a wasteful number, since it uses less digits than its factorization.

7889208842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20990.

The product of its (nonzero) digits is 4128768, while the sum is 56.

The square root of 7889208842 is about 88821.2184221766. The cubic root of 7889208842 is about 1990.7244521081.

The spelling of 7889208842 in words is "seven billion, eight hundred eighty-nine million, two hundred eight thousand, eight hundred forty-two".