13057438072609 has 4 divisors (see below), whose sum is σ = 14922786368704. Its totient is φ = 11192089776516.

The previous prime is 13057438072597. The next prime is 13057438072727. The reversal of 13057438072609 is 90627083475031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13057438072609 - 2⁴³ = 4261345050401 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 13057438072609.

It is not an unprimeable number, because it can be changed into a prime (13057438072309) 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, 932674148037 + ... + 932674148050.

It is an arithmetic number, because the mean of its divisors is an integer number (3730696592176).

It is a 1-persistent number, because it is pandigital, but 2⋅13057438072609 = 26114876145218 is not.

Almost surely, 2^{13057438072609} is an apocalyptic number.

It is an amenable number.

13057438072609 is a deficient number, since it is larger than the sum of its proper divisors (1865348296095).

13057438072609 is an equidigital number, since it uses as much as digits as its factorization.

13057438072609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1865348296094.

The product of its (nonzero) digits is 7620480, while the sum is 55.

The spelling of 13057438072609 in words is "thirteen trillion, fifty-seven billion, four hundred thirty-eight million, seventy-two thousand, six hundred nine".