6894434188 has 6 divisors (see below), whose sum is σ = 12065259836. Its totient is φ = 3447217092.

The previous prime is 6894434147. The next prime is 6894434189. The reversal of 6894434188 is 8814344986.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (6894434189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 861804270 + ... + 861804277.

Almost surely, 2^6894434188 is an apocalyptic number.

It is an amenable number.

6894434188 is a deficient number, since it is larger than the sum of its proper divisors (5170825648).

6894434188 is a wasteful number, since it uses less digits than its factorization.

6894434188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1723608551 (or 1723608549 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 55.

The square root of 6894434188 is about 83032.7296191086. The cubic root of 6894434188 is about 1903.2662367342.

The spelling of 6894434188 in words is "six billion, eight hundred ninety-four million, four hundred thirty-four thousand, one hundred eighty-eight".