12743953853269 has 2 divisors, whose sum is σ = 12743953853270. Its totient is φ = 12743953853268.

The previous prime is 12743953853231. The next prime is 12743953853339. The reversal of 12743953853269 is 96235835934721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11415870472644 + 1328083380625 = 3378738^2 + 1152425^2 .

It is a cyclic number.

It is not a de Polignac number, because 12743953853269 - 2²¹ = 12743951756117 is a prime.

It is a super-2 number, since 2×12743953853269² (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 (12743953856269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6371976926634 + 6371976926635.

It is an arithmetic number, because the mean of its divisors is an integer number (6371976926635).

Almost surely, 2^{12743953853269} is an apocalyptic number.

It is an amenable number.

12743953853269 is a deficient number, since it is larger than the sum of its proper divisors (1).

12743953853269 is an equidigital number, since it uses as much as digits as its factorization.

12743953853269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 293932800, while the sum is 67.

The spelling of 12743953853269 in words is "twelve trillion, seven hundred forty-three billion, nine hundred fifty-three million, eight hundred fifty-three thousand, two hundred sixty-nine".