8444403078481 has 4 divisors (see below), whose sum is σ = 8570438945392. Its totient is φ = 8318367211572.

The previous prime is 8444403078457. The next prime is 8444403078499. The reversal of 8444403078481 is 1848703044448.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8444403078481 - 2¹⁹ = 8444402554193 is a prime.

It is a super-2 number, since 2×8444403078481² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8444403078401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63017933355 + ... + 63017933488.

It is an arithmetic number, because the mean of its divisors is an integer number (2142609736348).

Almost surely, 2^{8444403078481} is an apocalyptic number.

It is an amenable number.

8444403078481 is a deficient number, since it is larger than the sum of its proper divisors (126035866911).

8444403078481 is a wasteful number, since it uses less digits than its factorization.

8444403078481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126035866910.

The product of its (nonzero) digits is 11010048, while the sum is 55.

The spelling of 8444403078481 in words is "eight trillion, four hundred forty-four billion, four hundred three million, seventy-eight thousand, four hundred eighty-one".