13645030005 has 24 divisors (see below), whose sum is σ = 24052260960. Its totient is φ = 7154003040.

The previous prime is 13645030001. The next prime is 13645030027. The reversal of 13645030005 is 50003054631.

13645030005 is a `hidden beast` number, since 13 + 645 + 0 + 3 + 0 + 0 + 0 + 5 = 666.

It is not a de Polignac number, because 13645030005 - 2² = 13645030001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13645030001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2567031 + ... + 2572340.

It is an arithmetic number, because the mean of its divisors is an integer number (1002177540).

Almost surely, 2^13645030005 is an apocalyptic number.

13645030005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13645030005 is a deficient number, since it is larger than the sum of its proper divisors (10407230955).

13645030005 is a wasteful number, since it uses less digits than its factorization.

13645030005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5139441 (or 5139438 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 13645030005 its reverse (50003054631), we get a palindrome (63648084636).

The spelling of 13645030005 in words is "thirteen billion, six hundred forty-five million, thirty thousand, five".