44128734647 has 2 divisors, whose sum is σ = 44128734648. Its totient is φ = 44128734646.

The previous prime is 44128734599. The next prime is 44128734653. The reversal of 44128734647 is 74643782144.

44128734647 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 44128734647 - 2¹⁶ = 44128669111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 44128734595 and 44128734604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44128734347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22064367323 + 22064367324.

It is an arithmetic number, because the mean of its divisors is an integer number (22064367324).

Almost surely, 2^44128734647 is an apocalyptic number.

44128734647 is a deficient number, since it is larger than the sum of its proper divisors (1).

44128734647 is an equidigital number, since it uses as much as digits as its factorization.

44128734647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3612672, while the sum is 50.

The spelling of 44128734647 in words is "forty-four billion, one hundred twenty-eight million, seven hundred thirty-four thousand, six hundred forty-seven".