44542163689 has 2 divisors, whose sum is σ = 44542163690. Its totient is φ = 44542163688.

The previous prime is 44542163663. The next prime is 44542163707. The reversal of 44542163689 is 98636124544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37594107664 + 6948056025 = 193892^2 + 83355^2 .

It is a cyclic number.

It is not a de Polignac number, because 44542163689 - 2⁹ = 44542163177 is a prime.

It is not a weakly prime, because it can be changed into another prime (44542163609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22271081844 + 22271081845.

It is an arithmetic number, because the mean of its divisors is an integer number (22271081845).

Almost surely, 2^44542163689 is an apocalyptic number.

It is an amenable number.

44542163689 is a deficient number, since it is larger than the sum of its proper divisors (1).

44542163689 is an equidigital number, since it uses as much as digits as its factorization.

44542163689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4976640, while the sum is 52.

The spelling of 44542163689 in words is "forty-four billion, five hundred forty-two million, one hundred sixty-three thousand, six hundred eighty-nine".