13473821926657 has 2 divisors, whose sum is σ = 13473821926658. Its totient is φ = 13473821926656.

The previous prime is 13473821926627. The next prime is 13473821926703. The reversal of 13473821926657 is 75662912837431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13062217560561 + 411604366096 = 3614169^2 + 641564^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13473821926657 is a prime.

It is a super-2 number, since 2×13473821926657² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13473821926627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6736910963328 + 6736910963329.

It is an arithmetic number, because the mean of its divisors is an integer number (6736910963329).

Almost surely, 2^{13473821926657} is an apocalyptic number.

It is an amenable number.

13473821926657 is a deficient number, since it is larger than the sum of its proper divisors (1).

13473821926657 is an equidigital number, since it uses as much as digits as its factorization.

13473821926657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 91445760, while the sum is 64.

The spelling of 13473821926657 in words is "thirteen trillion, four hundred seventy-three billion, eight hundred twenty-one million, nine hundred twenty-six thousand, six hundred fifty-seven".