9188913394 has 4 divisors (see below), whose sum is σ = 13783370094. Its totient is φ = 4594456696.

The previous prime is 9188913343. The next prime is 9188913413. The reversal of 9188913394 is 4933198819.

9188913394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9170552169 + 18361225 = 95763^2 + 4285^2 .

It is a super-2 number, since 2×9188913394² (a number of 21 digits) contains 22 as substring.

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 as a sum of consecutive naturals, namely, 2297228347 + ... + 2297228350.

Almost surely, 2^9188913394 is an apocalyptic number.

9188913394 is a deficient number, since it is larger than the sum of its proper divisors (4594456700).

9188913394 is a wasteful number, since it uses less digits than its factorization.

9188913394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4594456699.

The product of its digits is 1679616, while the sum is 55.

The square root of 9188913394 is about 95858.8201158349. The cubic root of 9188913394 is about 2094.5370780712.

The spelling of 9188913394 in words is "nine billion, one hundred eighty-eight million, nine hundred thirteen thousand, three hundred ninety-four".