44171808949 has 2 divisors, whose sum is σ = 44171808950. Its totient is φ = 44171808948.

The previous prime is 44171808899. The next prime is 44171808973. The reversal of 44171808949 is 94980817144.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36866688049 + 7305120900 = 192007^2 + 85470^2 .

It is a cyclic number.

It is not a de Polignac number, because 44171808949 - 2³³ = 35581874357 is a prime.

It is a super-2 number, since 2×44171808949² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 44171808949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44171808979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22085904474 + 22085904475.

It is an arithmetic number, because the mean of its divisors is an integer number (22085904475).

Almost surely, 2^44171808949 is an apocalyptic number.

It is an amenable number.

44171808949 is a deficient number, since it is larger than the sum of its proper divisors (1).

44171808949 is an equidigital number, since it uses as much as digits as its factorization.

44171808949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2322432, while the sum is 55.

The spelling of 44171808949 in words is "forty-four billion, one hundred seventy-one million, eight hundred eight thousand, nine hundred forty-nine".