10725715309 has 2 divisors, whose sum is σ = 10725715310. Its totient is φ = 10725715308.

The previous prime is 10725715303. The next prime is 10725715313. The reversal of 10725715309 is 90351752701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10725709225 + 6084 = 103565^2 + 78^2 .

It is a cyclic number.

It is not a de Polignac number, because 10725715309 - 2¹³ = 10725707117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10725715303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5362857654 + 5362857655.

It is an arithmetic number, because the mean of its divisors is an integer number (5362857655).

Almost surely, 2^10725715309 is an apocalyptic number.

It is an amenable number.

10725715309 is a deficient number, since it is larger than the sum of its proper divisors (1).

10725715309 is an equidigital number, since it uses as much as digits as its factorization.

10725715309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 66150, while the sum is 40.

The spelling of 10725715309 in words is "ten billion, seven hundred twenty-five million, seven hundred fifteen thousand, three hundred nine".