444242032422413 has 4 divisors (see below), whose sum is σ = 444242081020188. Its totient is φ = 444241983824640.

The previous prime is 444242032422347. The next prime is 444242032422509. The reversal of 444242032422413 is 314224230242444.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 202364793348004 + 241877239074409 = 14225498^2 + 15552403^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-444242032422413 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 (444242032442413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5987156 + ... + 30402797.

It is an arithmetic number, because the mean of its divisors is an integer number (111060520255047).

Almost surely, 2^{444242032422413} is an apocalyptic number.

It is an amenable number.

444242032422413 is a deficient number, since it is larger than the sum of its proper divisors (48597775).

444242032422413 is a wasteful number, since it uses less digits than its factorization.

444242032422413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48597774.

The product of its (nonzero) digits is 1179648, while the sum is 41.

Adding to 444242032422413 its reverse (314224230242444), we get a palindrome (758466262664857).

The spelling of 444242032422413 in words is "four hundred forty-four trillion, two hundred forty-two billion, thirty-two million, four hundred twenty-two thousand, four hundred thirteen".