4444412243129 has 2 divisors, whose sum is σ = 4444412243130. Its totient is φ = 4444412243128.

The previous prime is 4444412243119. The next prime is 4444412243153. The reversal of 4444412243129 is 9213422144444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2625291075625 + 1819121167504 = 1620275^2 + 1348748^2 .

It is a cyclic number.

It is not a de Polignac number, because 4444412243129 - 2⁸ = 4444412242873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4444412243129.

It is not a weakly prime, because it can be changed into another prime (4444412243119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2222206121564 + 2222206121565.

It is an arithmetic number, because the mean of its divisors is an integer number (2222206121565).

Almost surely, 2^{4444412243129} is an apocalyptic number.

It is an amenable number.

4444412243129 is a deficient number, since it is larger than the sum of its proper divisors (1).

4444412243129 is an equidigital number, since it uses as much as digits as its factorization.

4444412243129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 884736, while the sum is 44.

The spelling of 4444412243129 in words is "four trillion, four hundred forty-four billion, four hundred twelve million, two hundred forty-three thousand, one hundred twenty-nine".