44444629181 has 2 divisors, whose sum is σ = 44444629182. Its totient is φ = 44444629180.

The previous prime is 44444629169. The next prime is 44444629213. The reversal of 44444629181 is 18192644444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34592280100 + 9852349081 = 185990^2 + 99259^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44444629181 is a prime.

It is a super-2 number, since 2×44444629181² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44444629121) 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, 22222314590 + 22222314591.

It is an arithmetic number, because the mean of its divisors is an integer number (22222314591).

Almost surely, 2^44444629181 is an apocalyptic number.

It is an amenable number.

44444629181 is a deficient number, since it is larger than the sum of its proper divisors (1).

44444629181 is an equidigital number, since it uses as much as digits as its factorization.

44444629181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 884736, while the sum is 47.

The spelling of 44444629181 in words is "forty-four billion, four hundred forty-four million, six hundred twenty-nine thousand, one hundred eighty-one".