4445144552413 has 4 divisors (see below), whose sum is σ = 4445174072380. Its totient is φ = 4445115032448.

The previous prime is 4445144552383. The next prime is 4445144552437. The reversal of 4445144552413 is 3142554415444.

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 2526440312484 + 1918704239929 = 1589478^2 + 1385173^2 .

It is a cyclic number.

It is not a de Polignac number, because 4445144552413 - 2²⁵ = 4445110997981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4445144552213) 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, 14532948 + ... + 14835661.

It is an arithmetic number, because the mean of its divisors is an integer number (1111293518095).

Almost surely, 2^{4445144552413} is an apocalyptic number.

It is an amenable number.

4445144552413 is a deficient number, since it is larger than the sum of its proper divisors (29519967).

4445144552413 is a wasteful number, since it uses less digits than its factorization.

4445144552413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29519966.

The product of its digits is 3072000, while the sum is 46.

Adding to 4445144552413 its reverse (3142554415444), we get a palindrome (7587698967857).

The spelling of 4445144552413 in words is "four trillion, four hundred forty-five billion, one hundred forty-four million, five hundred fifty-two thousand, four hundred thirteen".