8194334938 has 8 divisors (see below), whose sum is σ = 12345177780. Its totient is φ = 4079275680.

The previous prime is 8194334933. The next prime is 8194334957. The reversal of 8194334938 is 8394334918.

It can be written as a sum of positive squares in 2 ways, for example, as 7795653849 + 398681089 = 88293^2 + 19967^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×8194334938² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8194334933) 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 3 ways as a sum of consecutive naturals, for example, 8945323 + ... + 8946238.

Almost surely, 2^8194334938 is an apocalyptic number.

8194334938 is a deficient number, since it is larger than the sum of its proper divisors (4150842842).

8194334938 is a wasteful number, since it uses less digits than its factorization.

8194334938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17891792.

The product of its digits is 2239488, while the sum is 52.

The square root of 8194334938 is about 90522.5659048615. The cubic root of 8194334938 is about 2016.0651875193.

The spelling of 8194334938 in words is "eight billion, one hundred ninety-four million, three hundred thirty-four thousand, nine hundred thirty-eight".