13444442434143 has 18 divisors (see below), whose sum is σ = 22590321641784. Its totient is φ = 7682538533544.

The previous prime is 13444442434139. The next prime is 13444442434243. The reversal of 13444442434143 is 34143424444431.

13444442434143 is a `hidden beast` number, since 1 + 3 + 44 + 44 + 424 + 3 + 4 + 143 = 666.

It is not a de Polignac number, because 13444442434143 - 2² = 13444442434139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13444442434103) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 15243131571 + ... + 15243132452.

It is an arithmetic number, because the mean of its divisors is an integer number (1255017868988).

Almost surely, 2^{13444442434143} is an apocalyptic number.

13444442434143 is a deficient number, since it is larger than the sum of its proper divisors (9145879207641).

13444442434143 is a wasteful number, since it uses less digits than its factorization.

13444442434143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30486264043 (or 30486264033 counting only the distinct ones).

The product of its digits is 3538944, while the sum is 45.

Adding to 13444442434143 its reverse (34143424444431), we get a palindrome (47587866878574).

The spelling of 13444442434143 in words is "thirteen trillion, four hundred forty-four billion, four hundred forty-two million, four hundred thirty-four thousand, one hundred forty-three".