6831188109 has 8 divisors (see below), whose sum is σ = 10120278720. Its totient is φ = 4554125388.

The previous prime is 6831188057. The next prime is 6831188113. The reversal of 6831188109 is 9018811386.

It is not a de Polignac number, because 6831188109 - 2²⁵ = 6797633677 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6832188109) 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, 126503457 + ... + 126503510.

It is an arithmetic number, because the mean of its divisors is an integer number (1265034840).

Almost surely, 2^6831188109 is an apocalyptic number.

It is an amenable number.

6831188109 is a deficient number, since it is larger than the sum of its proper divisors (3289090611).

6831188109 is a wasteful number, since it uses less digits than its factorization.

6831188109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253006976 (or 253006970 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 45.

The square root of 6831188109 is about 82651.0018632563. The cubic root of 6831188109 is about 1897.4284795490.

The spelling of 6831188109 in words is "six billion, eight hundred thirty-one million, one hundred eighty-eight thousand, one hundred nine".