6814478889 has 24 divisors (see below), whose sum is σ = 10221251040. Its totient is φ = 4536953856.

The previous prime is 6814478887. The next prime is 6814478903. The reversal of 6814478889 is 9888744186.

6814478889 is a `hidden beast` number, since 6 + 81 + 4 + 478 + 8 + 89 = 666.

It is not a de Polignac number, because 6814478889 - 2¹ = 6814478887 is a prime.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6814478887) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 168634 + ... + 205100.

It is an arithmetic number, because the mean of its divisors is an integer number (425885460).

Almost surely, 2^6814478889 is an apocalyptic number.

It is an amenable number.

6814478889 is a deficient number, since it is larger than the sum of its proper divisors (3406772151).

6814478889 is an equidigital number, since it uses as much as digits as its factorization.

6814478889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37251 (or 37239 counting only the distinct ones).

The product of its digits is 24772608, while the sum is 63.

The square root of 6814478889 is about 82549.8569895793. The cubic root of 6814478889 is about 1895.8801673783.

The spelling of 6814478889 in words is "six billion, eight hundred fourteen million, four hundred seventy-eight thousand, eight hundred eighty-nine".