10561729369 has 2 divisors, whose sum is σ = 10561729370. Its totient is φ = 10561729368.

The previous prime is 10561729319. The next prime is 10561729379. The reversal of 10561729369 is 96392716501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10413182025 + 148547344 = 102045^2 + 12188^2 .

It is an emirp because it is prime and its reverse (96392716501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10561729369 - 2¹⁵ = 10561696601 is a prime.

It is a super-2 number, since 2×10561729369² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10561729319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5280864684 + 5280864685.

It is an arithmetic number, because the mean of its divisors is an integer number (5280864685).

Almost surely, 2^10561729369 is an apocalyptic number.

It is an amenable number.

10561729369 is a deficient number, since it is larger than the sum of its proper divisors (1).

10561729369 is an equidigital number, since it uses as much as digits as its factorization.

10561729369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 612360, while the sum is 49.

The spelling of 10561729369 in words is "ten billion, five hundred sixty-one million, seven hundred twenty-nine thousand, three hundred sixty-nine".