3645345178 has 8 divisors (see below), whose sum is σ = 5601384180. Its totient is φ = 1778217120.

The previous prime is 3645345169. The next prime is 3645345181. The reversal of 3645345178 is 8715435463.

It can be written as a sum of positive squares in 2 ways, for example, as 3375958609 + 269386569 = 58103^2 + 16413^2 .

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

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 in 3 ways as a sum of consecutive naturals, for example, 22227633 + ... + 22227796.

Almost surely, 2^3645345178 is an apocalyptic number.

3645345178 is a deficient number, since it is larger than the sum of its proper divisors (1956039002).

3645345178 is a wasteful number, since it uses less digits than its factorization.

3645345178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44455472.

The product of its digits is 1209600, while the sum is 46.

The square root of 3645345178 is about 60376.6939969389. The cubic root of 3645345178 is about 1539.0269303997.

The spelling of 3645345178 in words is "three billion, six hundred forty-five million, three hundred forty-five thousand, one hundred seventy-eight".