3618133729 has 16 divisors (see below), whose sum is σ = 4354606080. Its totient is φ = 2936707920.

The previous prime is 3618133693. The next prime is 3618133741. The reversal of 3618133729 is 9273318163.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 3618133729 - 2¹¹ = 3618131681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3618133429) 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 15 ways as a sum of consecutive naturals, for example, 381414 + ... + 390784.

It is an arithmetic number, because the mean of its divisors is an integer number (272162880).

Almost surely, 2^3618133729 is an apocalyptic number.

It is an amenable number.

3618133729 is a deficient number, since it is larger than the sum of its proper divisors (736472351).

3618133729 is a wasteful number, since it uses less digits than its factorization.

3618133729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12300.

The product of its digits is 163296, while the sum is 43.

The square root of 3618133729 is about 60150.9245897351. The cubic root of 3618133729 is about 1535.1878982144.

The spelling of 3618133729 in words is "three billion, six hundred eighteen million, one hundred thirty-three thousand, seven hundred twenty-nine".