8947111855 has 32 divisors (see below), whose sum is σ = 11842459200. Its totient is φ = 6435072000.

The previous prime is 8947111819. The next prime is 8947111879. The reversal of 8947111855 is 5581117498.

8947111855 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8947111855 - 2¹³ = 8947103663 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8947111799 and 8947111808.

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, 4201431 + ... + 4203559.

It is an arithmetic number, because the mean of its divisors is an integer number (370076850).

Almost surely, 2^8947111855 is an apocalyptic number.

8947111855 is a deficient number, since it is larger than the sum of its proper divisors (2895347345).

8947111855 is a wasteful number, since it uses less digits than its factorization.

8947111855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2955.

The product of its digits is 403200, while the sum is 49.

The square root of 8947111855 is about 94589.1740898503. The cubic root of 8947111855 is about 2076.0013054808.

The spelling of 8947111855 in words is "eight billion, nine hundred forty-seven million, one hundred eleven thousand, eight hundred fifty-five".