5645053044 has 18 divisors (see below), whose sum is σ = 14269439730. Its totient is φ = 1881684336.

The previous prime is 5645053009. The next prime is 5645053049. The reversal of 5645053044 is 4403505465.

5645053044 is a `hidden beast` number, since 5 + 645 + 0 + 5 + 3 + 0 + 4 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5544291600 + 100761444 = 74460^2 + 10038^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 156807029 = 5645053044 / (5 + 6 + 4 + 5 + 0 + 5 + 3 + 0 + 4 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5645053049) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 78403479 + ... + 78403550.

Almost surely, 2^5645053044 is an apocalyptic number.

It is an amenable number.

5645053044 is an abundant number, since it is smaller than the sum of its proper divisors (8624386686).

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

5645053044 is a wasteful number, since it uses less digits than its factorization.

5645053044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156807039 (or 156807034 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

The square root of 5645053044 is about 75133.5680238866. The cubic root of 5645053044 is about 1780.5575247206.

The spelling of 5645053044 in words is "five billion, six hundred forty-five million, fifty-three thousand, forty-four".