41544044513 has 4 divisors (see below), whose sum is σ = 42010831620. Its totient is φ = 41077257408.

The previous prime is 41544044501. The next prime is 41544044551. The reversal of 41544044513 is 31544044514.

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 6480733009 + 35063311504 = 80503^2 + 187252^2 .

It is a cyclic number.

It is not a de Polignac number, because 41544044513 - 2²⁰ = 41542995937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41544044713) 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, 233393420 + ... + 233393597.

It is an arithmetic number, because the mean of its divisors is an integer number (10502707905).

Almost surely, 2^41544044513 is an apocalyptic number.

It is an amenable number.

41544044513 is a deficient number, since it is larger than the sum of its proper divisors (466787107).

41544044513 is an equidigital number, since it uses as much as digits as its factorization.

41544044513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466787106.

The product of its (nonzero) digits is 76800, while the sum is 35.

Subtracting from 41544044513 its reverse (31544044514), we obtain a palindrome (9999999999).

The spelling of 41544044513 in words is "forty-one billion, five hundred forty-four million, forty-four thousand, five hundred thirteen".