13265123458493 has 2 divisors, whose sum is σ = 13265123458494. Its totient is φ = 13265123458492.

The previous prime is 13265123458441. The next prime is 13265123458511. The reversal of 13265123458493 is 39485432156231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11260299675769 + 2004823782724 = 3355637^2 + 1415918^2 .

It is a cyclic number.

It is not a de Polignac number, because 13265123458493 - 2¹² = 13265123454397 is a prime.

It is a super-2 number, since 2×13265123458493² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13265123458423) 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 as a sum of consecutive naturals, namely, 6632561729246 + 6632561729247.

It is an arithmetic number, because the mean of its divisors is an integer number (6632561729247).

Almost surely, 2^{13265123458493} is an apocalyptic number.

It is an amenable number.

13265123458493 is a deficient number, since it is larger than the sum of its proper divisors (1).

13265123458493 is an equidigital number, since it uses as much as digits as its factorization.

13265123458493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18662400, while the sum is 56.

The spelling of 13265123458493 in words is "thirteen trillion, two hundred sixty-five billion, one hundred twenty-three million, four hundred fifty-eight thousand, four hundred ninety-three".