44161539437 has 2 divisors, whose sum is σ = 44161539438. Its totient is φ = 44161539436.

The previous prime is 44161539391. The next prime is 44161539449. The reversal of 44161539437 is 73493516144.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38251927561 + 5909611876 = 195581^2 + 76874^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44161539437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 44161539391 and 44161539400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44161535437) 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 as a sum of consecutive naturals, namely, 22080769718 + 22080769719.

It is an arithmetic number, because the mean of its divisors is an integer number (22080769719).

Almost surely, 2^44161539437 is an apocalyptic number.

It is an amenable number.

44161539437 is a deficient number, since it is larger than the sum of its proper divisors (1).

44161539437 is an equidigital number, since it uses as much as digits as its factorization.

44161539437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 47.

The spelling of 44161539437 in words is "forty-four billion, one hundred sixty-one million, five hundred thirty-nine thousand, four hundred thirty-seven".