13806305081 has 8 divisors (see below), whose sum is σ = 14620290120. Its totient is φ = 12992525568.

The previous prime is 13806305063. The next prime is 13806305101. The reversal of 13806305081 is 18050360831.

It can be written as a sum of positive squares in 4 ways, for example, as 5803392400 + 8002912681 = 76180^2 + 89459^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13806305081 - 2¹⁴ = 13806288697 is a prime.

It is a super-2 number, since 2×13806305081² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13806305021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99635 + ... + 193751.

It is an arithmetic number, because the mean of its divisors is an integer number (1827536265).

Almost surely, 2^13806305081 is an apocalyptic number.

It is an amenable number.

13806305081 is a deficient number, since it is larger than the sum of its proper divisors (813985039).

13806305081 is an equidigital number, since it uses as much as digits as its factorization.

13806305081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102763.

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 13806305081 in words is "thirteen billion, eight hundred six million, three hundred five thousand, eighty-one".