13801950917 has 4 divisors (see below), whose sum is σ = 13810862700. Its totient is φ = 13793039136.

The previous prime is 13801950901. The next prime is 13801950931. The reversal of 13801950917 is 71905910831.

13801950917 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.

It can be written as a sum of positive squares in 2 ways, for example, as 5643164641 + 8158786276 = 75121^2 + 90326^2 .

It is a cyclic number.

It is not a de Polignac number, because 13801950917 - 2⁴ = 13801950901 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 (13801950817) 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, 4453568 + ... + 4456665.

It is an arithmetic number, because the mean of its divisors is an integer number (3452715675).

Almost surely, 2^13801950917 is an apocalyptic number.

It is an amenable number.

13801950917 is a deficient number, since it is larger than the sum of its proper divisors (8911783).

13801950917 is an equidigital number, since it uses as much as digits as its factorization.

13801950917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8911782.

The product of its (nonzero) digits is 68040, while the sum is 44.

The spelling of 13801950917 in words is "thirteen billion, eight hundred one million, nine hundred fifty thousand, nine hundred seventeen".