13885820801 has 4 divisors (see below), whose sum is σ = 13886321412. Its totient is φ = 13885320192.

The previous prime is 13885820791. The next prime is 13885820831. The reversal of 13885820801 is 10802858831.

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 8045193025 + 5840627776 = 89695^2 + 76424^2 .

It is a cyclic number.

It is not a de Polignac number, because 13885820801 - 2⁶ = 13885820737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13885820831) 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, 206096 + ... + 265041.

It is an arithmetic number, because the mean of its divisors is an integer number (3471580353).

Almost surely, 2^13885820801 is an apocalyptic number.

It is an amenable number.

13885820801 is a deficient number, since it is larger than the sum of its proper divisors (500611).

13885820801 is an equidigital number, since it uses as much as digits as its factorization.

13885820801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500610.

The product of its (nonzero) digits is 122880, while the sum is 44.

The spelling of 13885820801 in words is "thirteen billion, eight hundred eighty-five million, eight hundred twenty thousand, eight hundred one".