13126658475757 has 4 divisors (see below), whose sum is σ = 13126687846300. Its totient is φ = 13126629105216.

The previous prime is 13126658475709. The next prime is 13126658475761. The reversal of 13126658475757 is 75757485662131.

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 1124944481956 + 12001713993801 = 1060634^2 + 3464349^2 .

It is a cyclic number.

It is not a de Polignac number, because 13126658475757 - 2²³ = 13126650087149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13126658475692 and 13126658475701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13126658475767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14004348 + ... + 14912245.

It is an arithmetic number, because the mean of its divisors is an integer number (3281671961575).

Almost surely, 2^{13126658475757} is an apocalyptic number.

It is an amenable number.

13126658475757 is a deficient number, since it is larger than the sum of its proper divisors (29370543).

13126658475757 is an equidigital number, since it uses as much as digits as its factorization.

13126658475757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29370542.

The product of its digits is 296352000, while the sum is 67.

The spelling of 13126658475757 in words is "thirteen trillion, one hundred twenty-six billion, six hundred fifty-eight million, four hundred seventy-five thousand, seven hundred fifty-seven".