8191336036 has 45 divisors (see below), whose sum is σ = 15789965961. Its totient is φ = 3716538384.

The previous prime is 8191336007. The next prime is 8191336039. The reversal of 8191336036 is 6306331918.

The square root of 8191336036 is 90506.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1211736100 + 6979599936 = 34810^2 + 83544^2 .

It is a super-3 number, since 3×8191336036³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8191336036.

It is not an unprimeable number, because it can be changed into a prime (8191336039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 138836175 + ... + 138836233.

Almost surely, 2^8191336036 is an apocalyptic number.

8191336036 is the 90506-th square number.

It is an amenable number.

8191336036 is a deficient number, since it is larger than the sum of its proper divisors (7598629925).

8191336036 is an frugal number, since it uses more digits than its factorization.

8191336036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266 (or 74 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 40.

The cubic root of 8191336036 is about 2015.8192159762.

The spelling of 8191336036 in words is "eight billion, one hundred ninety-one million, three hundred thirty-six thousand, thirty-six".