8189378205 has 16 divisors (see below), whose sum is σ = 13287556224. Its totient is φ = 4306151360.

The previous prime is 8189378203. The next prime is 8189378213. The reversal of 8189378205 is 5028739818.

It is not a de Polignac number, because 8189378205 - 2¹ = 8189378203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8189378201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3843714 + ... + 3845843.

It is an arithmetic number, because the mean of its divisors is an integer number (830472264).

Almost surely, 2^8189378205 is an apocalyptic number.

It is an amenable number.

8189378205 is a deficient number, since it is larger than the sum of its proper divisors (5098178019).

8189378205 is a wasteful number, since it uses less digits than its factorization.

8189378205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7689636.

The product of its (nonzero) digits is 967680, while the sum is 51.

The square root of 8189378205 is about 90495.1833248599. The cubic root of 8189378205 is about 2015.6586012402.

The spelling of 8189378205 in words is "eight billion, one hundred eighty-nine million, three hundred seventy-eight thousand, two hundred five".