9136394886609 has 9 divisors (see below), whose sum is σ = 13197027934363. Its totient is φ = 6090923879112.

The previous prime is 9136394886589. The next prime is 9136394886643. The reversal of 9136394886609 is 9066884936319.

The square root of 9136394886609 is 3022647.

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

9136394886609 is a `hidden beast` number, since 9 + 1 + 3 + 6 + 3 + 9 + 4 + 8 + 8 + 6 + 609 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3660514083009 + 5475880803600 = 1913247^2 + 2340060^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 9136394886609 - 2⁷ = 9136394886481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9136394836609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8564167 + ... + 9571715.

Almost surely, 2^{9136394886609} is an apocalyptic number.

9136394886609 is the 3022647-th square number.

9136394886609 is the 1511324-th centered octagonal number.

It is an amenable number.

9136394886609 is a deficient number, since it is larger than the sum of its proper divisors (4060633047754).

9136394886609 is an frugal number, since it uses more digits than its factorization.

9136394886609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2015104 (or 1007552 counting only the distinct ones).

The product of its (nonzero) digits is 362797056, while the sum is 72.

The spelling of 9136394886609 in words is "nine trillion, one hundred thirty-six billion, three hundred ninety-four million, eight hundred eighty-six thousand, six hundred nine".