44198092799981 has 2 divisors, whose sum is σ = 44198092799982. Its totient is φ = 44198092799980.

The previous prime is 44198092799969. The next prime is 44198092800019. The reversal of 44198092799981 is 18999729089144.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39277419808900 + 4920672991081 = 6267170^2 + 2218259^2 .

It is a cyclic number.

It is not a de Polignac number, because 44198092799981 - 2¹⁰ = 44198092798957 is a prime.

It is a super-2 number, since 2×44198092799981² (a number of 28 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 44198092799896 and 44198092799905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44198092799911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22099046399990 + 22099046399991.

It is an arithmetic number, because the mean of its divisors is an integer number (22099046399991).

Almost surely, 2^{44198092799981} is an apocalyptic number.

It is an amenable number.

44198092799981 is a deficient number, since it is larger than the sum of its proper divisors (1).

44198092799981 is an equidigital number, since it uses as much as digits as its factorization.

44198092799981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 846526464, while the sum is 80.

The spelling of 44198092799981 in words is "forty-four trillion, one hundred ninety-eight billion, ninety-two million, seven hundred ninety-nine thousand, nine hundred eighty-one".