13443144049 has 2 divisors, whose sum is σ = 13443144050. Its totient is φ = 13443144048.

The previous prime is 13443144037. The next prime is 13443144131. The reversal of 13443144049 is 94044134431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12536833024 + 906311025 = 111968^2 + 30105^2 .

It is a cyclic number.

It is not a de Polignac number, because 13443144049 - 2⁹ = 13443143537 is a prime.

It is a super-2 number, since 2×13443144049² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13443143999 and 13443144017.

It is not a weakly prime, because it can be changed into another prime (13443144149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6721572024 + 6721572025.

It is an arithmetic number, because the mean of its divisors is an integer number (6721572025).

Almost surely, 2^13443144049 is an apocalyptic number.

It is an amenable number.

13443144049 is a deficient number, since it is larger than the sum of its proper divisors (1).

13443144049 is an equidigital number, since it uses as much as digits as its factorization.

13443144049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 37.

The spelling of 13443144049 in words is "thirteen billion, four hundred forty-three million, one hundred forty-four thousand, forty-nine".