1268746026853 has 2 divisors, whose sum is σ = 1268746026854. Its totient is φ = 1268746026852.

The previous prime is 1268746026851. The next prime is 1268746026869. The reversal of 1268746026853 is 3586206478621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1238809068324 + 29936958529 = 1113018^2 + 173023^2 .

It is a cyclic number.

It is not a de Polignac number, because 1268746026853 - 2¹ = 1268746026851 is a prime.

Together with 1268746026851, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1268746026851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 634373013426 + 634373013427.

It is an arithmetic number, because the mean of its divisors is an integer number (634373013427).

Almost surely, 2^{1268746026853} is an apocalyptic number.

It is an amenable number.

1268746026853 is a deficient number, since it is larger than the sum of its proper divisors (1).

1268746026853 is an equidigital number, since it uses as much as digits as its factorization.

1268746026853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23224320, while the sum is 58.

The spelling of 1268746026853 in words is "one trillion, two hundred sixty-eight billion, seven hundred forty-six million, twenty-six thousand, eight hundred fifty-three".