44171808899 has 2 divisors, whose sum is σ = 44171808900. Its totient is φ = 44171808898.

The previous prime is 44171808869. The next prime is 44171808949. The reversal of 44171808899 is 99880817144.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44171808899 is a prime.

It is a super-2 number, since 2×44171808899² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (44171808869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22085904449 + 22085904450.

It is an arithmetic number, because the mean of its divisors is an integer number (22085904450).

Almost surely, 2^44171808899 is an apocalyptic number.

44171808899 is a deficient number, since it is larger than the sum of its proper divisors (1).

44171808899 is an equidigital number, since it uses as much as digits as its factorization.

44171808899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4644864, while the sum is 59.

The spelling of 44171808899 in words is "forty-four billion, one hundred seventy-one million, eight hundred eight thousand, eight hundred ninety-nine".