13820063827 has 4 divisors (see below), whose sum is σ = 14633008776. Its totient is φ = 13007118880.

The previous prime is 13820063809. The next prime is 13820063837. The reversal of 13820063827 is 72836002831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72836002831 = 11867 ⋅6137693.

It is not a de Polignac number, because 13820063827 - 2²³ = 13811675219 is a prime.

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 13820063827.

It is not an unprimeable number, because it can be changed into a prime (13820063837) 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, 406472449 + ... + 406472482.

It is an arithmetic number, because the mean of its divisors is an integer number (3658252194).

Almost surely, 2^13820063827 is an apocalyptic number.

13820063827 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

13820063827 is a deficient number, since it is larger than the sum of its proper divisors (812944949).

13820063827 is an equidigital number, since it uses as much as digits as its factorization.

13820063827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812944948.

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 13820063827 in words is "thirteen billion, eight hundred twenty million, sixty-three thousand, eight hundred twenty-seven".