13443238577 has 2 divisors, whose sum is σ = 13443238578. Its totient is φ = 13443238576.

The previous prime is 13443238483. The next prime is 13443238603. The reversal of 13443238577 is 77583234431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9851753536 + 3591485041 = 99256^2 + 59929^2 .

It is a cyclic number.

It is not a de Polignac number, because 13443238577 - 2²⁰ = 13442190001 is a prime.

It is not a weakly prime, because it can be changed into another prime (13443232577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6721619288 + 6721619289.

It is an arithmetic number, because the mean of its divisors is an integer number (6721619289).

Almost surely, 2^13443238577 is an apocalyptic number.

It is an amenable number.

13443238577 is a deficient number, since it is larger than the sum of its proper divisors (1).

13443238577 is an equidigital number, since it uses as much as digits as its factorization.

13443238577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1693440, while the sum is 47.

The spelling of 13443238577 in words is "thirteen billion, four hundred forty-three million, two hundred thirty-eight thousand, five hundred seventy-seven".