44454162689 has 4 divisors (see below), whose sum is σ = 44912453124. Its totient is φ = 43995872256.

The previous prime is 44454162667. The next prime is 44454162721. The reversal of 44454162689 is 98626145444.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21901632064 + 22552530625 = 147992^2 + 150175^2 .

It is a cyclic number.

It is not a de Polignac number, because 44454162689 - 2¹⁶ = 44454097153 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 44454162689.

It is not an unprimeable number, because it can be changed into a prime (44454162659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229145072 + ... + 229145265.

It is an arithmetic number, because the mean of its divisors is an integer number (11228113281).

Almost surely, 2^44454162689 is an apocalyptic number.

It is an amenable number.

44454162689 is a deficient number, since it is larger than the sum of its proper divisors (458290435).

44454162689 is an equidigital number, since it uses as much as digits as its factorization.

44454162689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458290434.

The product of its digits is 6635520, while the sum is 53.

The spelling of 44454162689 in words is "forty-four billion, four hundred fifty-four million, one hundred sixty-two thousand, six hundred eighty-nine".