13807569641 has 2 divisors, whose sum is σ = 13807569642. Its totient is φ = 13807569640.

The previous prime is 13807569557. The next prime is 13807569647. The reversal of 13807569641 is 14696570831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13400377600 + 407192041 = 115760^2 + 20179^2 .

It is a cyclic number.

It is not a de Polignac number, because 13807569641 - 2¹⁰ = 13807568617 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13807569641.

It is not a weakly prime, because it can be changed into another prime (13807569647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6903784820 + 6903784821.

It is an arithmetic number, because the mean of its divisors is an integer number (6903784821).

Almost surely, 2^13807569641 is an apocalyptic number.

It is an amenable number.

13807569641 is a deficient number, since it is larger than the sum of its proper divisors (1).

13807569641 is an equidigital number, since it uses as much as digits as its factorization.

13807569641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 13807569641 in words is "thirteen billion, eight hundred seven million, five hundred sixty-nine thousand, six hundred forty-one".