10507865309 has 4 divisors (see below), whose sum is σ = 10510823004. Its totient is φ = 10504907616.

The previous prime is 10507865297. The next prime is 10507865311. The reversal of 10507865309 is 90356870501.

10507865309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90356870501 = 23 ⋅3928559587.

It can be written as a sum of positive squares in 2 ways, for example, as 4784488900 + 5723376409 = 69170^2 + 75653^2 .

It is a cyclic number.

It is not a de Polignac number, because 10507865309 - 2⁴ = 10507865293 is a prime.

It is a super-2 number, since 2×10507865309² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10507865309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10507865009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1473512 + ... + 1480625.

It is an arithmetic number, because the mean of its divisors is an integer number (2627705751).

Almost surely, 2^10507865309 is an apocalyptic number.

It is an amenable number.

10507865309 is a deficient number, since it is larger than the sum of its proper divisors (2957695).

10507865309 is an equidigital number, since it uses as much as digits as its factorization.

10507865309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2957694.

The product of its (nonzero) digits is 226800, while the sum is 44.

The spelling of 10507865309 in words is "ten billion, five hundred seven million, eight hundred sixty-five thousand, three hundred nine".