544444434145 has 16 divisors (see below), whose sum is σ = 715618650960. Its totient is φ = 395798953984.

The previous prime is 544444434113. The next prime is 544444434241. The reversal of 544444434145 is 541434444445.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 56564535889 + 487879898256 = 237833^2 + 698484^2 .

It is a cyclic number.

It is not a de Polignac number, because 544444434145 - 2⁵ = 544444434113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 544444434095 and 544444434104.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110432512 + ... + 110437441.

It is an arithmetic number, because the mean of its divisors is an integer number (44726165685).

Almost surely, 2^544444434145 is an apocalyptic number.

It is an amenable number.

544444434145 is a deficient number, since it is larger than the sum of its proper divisors (171174216815).

544444434145 is a wasteful number, since it uses less digits than its factorization.

544444434145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220870004.

The product of its digits is 4915200, while the sum is 46.

The spelling of 544444434145 in words is "five hundred forty-four billion, four hundred forty-four million, four hundred thirty-four thousand, one hundred forty-five".