13628443827 has 4 divisors (see below), whose sum is σ = 18171258440. Its totient is φ = 9085629216.

The previous prime is 13628443817. The next prime is 13628443853. The reversal of 13628443827 is 72834482631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72834482631 = 3 ⋅24278160877.

It is not a de Polignac number, because 13628443827 - 2⁴ = 13628443811 is a prime.

It is a super-2 number, since 2×13628443827² (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 (13628443817) 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, 2271407302 + ... + 2271407307.

It is an arithmetic number, because the mean of its divisors is an integer number (4542814610).

Almost surely, 2^13628443827 is an apocalyptic number.

13628443827 is a deficient number, since it is larger than the sum of its proper divisors (4542814613).

13628443827 is an equidigital number, since it uses as much as digits as its factorization.

13628443827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4542814612.

The product of its digits is 1548288, while the sum is 48.

The spelling of 13628443827 in words is "thirteen billion, six hundred twenty-eight million, four hundred forty-three thousand, eight hundred twenty-seven".