3618545844 has 12 divisors (see below), whose sum is σ = 8443273664. Its totient is φ = 1206181944.

The previous prime is 3618545837. The next prime is 3618545857. The reversal of 3618545844 is 4485458163.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 3618545793 and 3618545802.

It is a congruent number.

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, 150772732 + ... + 150772755.

Almost surely, 2^3618545844 is an apocalyptic number.

It is an amenable number.

3618545844 is an abundant number, since it is smaller than the sum of its proper divisors (4824727820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3618545844 is a wasteful number, since it uses less digits than its factorization.

3618545844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301545494 (or 301545492 counting only the distinct ones).

The product of its digits is 1843200, while the sum is 48.

The square root of 3618545844 is about 60154.3501668832. The cubic root of 3618545844 is about 1535.2461833220.

The spelling of 3618545844 in words is "three billion, six hundred eighteen million, five hundred forty-five thousand, eight hundred forty-four".