54644044645 has 16 divisors (see below), whose sum is σ = 66565328112. Its totient is φ = 43058073600.

The previous prime is 54644044633. The next prime is 54644044649.

54644044645 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 8 ways, for example, as 2601204004 + 52042840641 = 51002^2 + 228129^2 .

It is not a de Polignac number, because 54644044645 - 2⁵ = 54644044613 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54644044595 and 54644044604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54644044649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182862 + ... + 377791.

It is an arithmetic number, because the mean of its divisors is an integer number (4160333007).

Almost surely, 2^54644044645 is an apocalyptic number.

It is an amenable number.

54644044645 is a deficient number, since it is larger than the sum of its proper divisors (11921283467).

54644044645 is a wasteful number, since it uses less digits than its factorization.

54644044645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560952.

The product of its (nonzero) digits is 3686400, while the sum is 46.

The spelling of 54644044645 in words is "fifty-four billion, six hundred forty-four million, forty-four thousand, six hundred forty-five".