13126367657 has 8 divisors (see below), whose sum is σ = 14138456136. Its totient is φ = 12114617472.

The previous prime is 13126367633. The next prime is 13126367659. The reversal of 13126367657 is 75676362131.

13126367657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10621081 + 13115746576 = 3259^2 + 114524^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13126367657 - 2¹⁰ = 13126366633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13126367659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 908 + ... + 162029.

It is an arithmetic number, because the mean of its divisors is an integer number (1767307017).

Almost surely, 2^13126367657 is an apocalyptic number.

It is an amenable number.

13126367657 is a deficient number, since it is larger than the sum of its proper divisors (1012088479).

13126367657 is a wasteful number, since it uses less digits than its factorization.

13126367657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169147.

The product of its digits is 952560, while the sum is 47.

The spelling of 13126367657 in words is "thirteen billion, one hundred twenty-six million, three hundred sixty-seven thousand, six hundred fifty-seven".