44403561868871 has 2 divisors, whose sum is σ = 44403561868872. Its totient is φ = 44403561868870.

The previous prime is 44403561868847. The next prime is 44403561868873. The reversal of 44403561868871 is 17886816530444.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 44403561868871 - 2³⁸ = 44128683961927 is a prime.

It is a Sophie Germain prime.

Together with 44403561868873, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 44403561868798 and 44403561868807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44403561868873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22201780934435 + 22201780934436.

It is an arithmetic number, because the mean of its divisors is an integer number (22201780934436).

Almost surely, 2^{44403561868871} is an apocalyptic number.

44403561868871 is a deficient number, since it is larger than the sum of its proper divisors (1).

44403561868871 is an equidigital number, since it uses as much as digits as its factorization.

44403561868871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 123863040, while the sum is 65.

The spelling of 44403561868871 in words is "forty-four trillion, four hundred three billion, five hundred sixty-one million, eight hundred sixty-eight thousand, eight hundred seventy-one".