44403561868849 has 4 divisors (see below), whose sum is σ = 44408573000820. Its totient is φ = 44398550736880.

The previous prime is 44403561868847. The next prime is 44403561868871. The reversal of 44403561868849 is 94886816530444.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24181137474624 + 20222424394225 = 4917432^2 + 4496935^2 .

It is a cyclic number.

It is not a de Polignac number, because 44403561868849 - 2¹ = 44403561868847 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44403561868847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2505552694 + ... + 2505570415.

It is an arithmetic number, because the mean of its divisors is an integer number (11102143250205).

Almost surely, 2^{44403561868849} is an apocalyptic number.

It is an amenable number.

44403561868849 is a deficient number, since it is larger than the sum of its proper divisors (5011131971).

44403561868849 is an equidigital number, since it uses as much as digits as its factorization.

44403561868849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5011131970.

The product of its (nonzero) digits is 637009920, while the sum is 70.

The spelling of 44403561868849 in words is "forty-four trillion, four hundred three billion, five hundred sixty-one million, eight hundred sixty-eight thousand, eight hundred forty-nine".