7889947113 has 8 divisors (see below), whose sum is σ = 10859282176. Its totient is φ = 5090288400.

The previous prime is 7889947097. The next prime is 7889947123. The reversal of 7889947113 is 3117499887.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7889947113 - 2⁴ = 7889947097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7889947123) 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 7 ways as a sum of consecutive naturals, for example, 42418978 + ... + 42419163.

It is an arithmetic number, because the mean of its divisors is an integer number (1357410272).

Almost surely, 2^7889947113 is an apocalyptic number.

It is an amenable number.

7889947113 is a deficient number, since it is larger than the sum of its proper divisors (2969335063).

7889947113 is a wasteful number, since it uses less digits than its factorization.

7889947113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84838175.

The product of its digits is 3048192, while the sum is 57.

The square root of 7889947113 is about 88825.3742632138. The cubic root of 7889947113 is about 1990.7865474047.

The spelling of 7889947113 in words is "seven billion, eight hundred eighty-nine million, nine hundred forty-seven thousand, one hundred thirteen".