13027942657 has 4 divisors (see below), whose sum is σ = 13028603476. Its totient is φ = 13027281840.

The previous prime is 13027942651. The next prime is 13027942679. The reversal of 13027942657 is 75624972031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10070323201 + 2957619456 = 100351^2 + 54384^2 .

It is a cyclic number.

It is not a de Polignac number, because 13027942657 - 2²³ = 13019554049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13027942651) 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, 299898 + ... + 340579.

It is an arithmetic number, because the mean of its divisors is an integer number (3257150869).

Almost surely, 2^13027942657 is an apocalyptic number.

It is an amenable number.

13027942657 is a deficient number, since it is larger than the sum of its proper divisors (660819).

13027942657 is an equidigital number, since it uses as much as digits as its factorization.

13027942657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660818.

The product of its (nonzero) digits is 635040, while the sum is 46.

The spelling of 13027942657 in words is "thirteen billion, twenty-seven million, nine hundred forty-two thousand, six hundred fifty-seven".