13138577641 has 16 divisors (see below), whose sum is σ = 15445595520. Its totient is φ = 10940037120.

The previous prime is 13138577603. The next prime is 13138577651. The reversal of 13138577641 is 14677583131.

It is a cyclic number.

It is not a de Polignac number, because 13138577641 - 2⁹ = 13138577129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13138577591 and 13138577600.

It is not an unprimeable number, because it can be changed into a prime (13138577651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126450 + ... + 205588.

It is an arithmetic number, because the mean of its divisors is an integer number (965349720).

Almost surely, 2^13138577641 is an apocalyptic number.

It is an amenable number.

13138577641 is a deficient number, since it is larger than the sum of its proper divisors (2307017879).

13138577641 is an equidigital number, since it uses as much as digits as its factorization.

13138577641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79824.

The product of its digits is 423360, while the sum is 46.

The spelling of 13138577641 in words is "thirteen billion, one hundred thirty-eight million, five hundred seventy-seven thousand, six hundred forty-one".