13810750309 has 4 divisors (see below), whose sum is σ = 14623147404. Its totient is φ = 12998353216.

The previous prime is 13810750307. The next prime is 13810750319. The reversal of 13810750309 is 90305701831.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90305701831 = 14563 ⋅6201037.

It can be written as a sum of positive squares in 2 ways, for example, as 10115934084 + 3694816225 = 100578^2 + 60785^2 .

It is a cyclic number.

It is not a de Polignac number, because 13810750309 - 2¹ = 13810750307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13810750307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 406198522 + ... + 406198555.

It is an arithmetic number, because the mean of its divisors is an integer number (3655786851).

Almost surely, 2^13810750309 is an apocalyptic number.

It is an amenable number.

13810750309 is a deficient number, since it is larger than the sum of its proper divisors (812397095).

13810750309 is an equidigital number, since it uses as much as digits as its factorization.

13810750309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812397094.

The product of its (nonzero) digits is 22680, while the sum is 37.

The spelling of 13810750309 in words is "thirteen billion, eight hundred ten million, seven hundred fifty thousand, three hundred nine".