1268342673833 has 2 divisors, whose sum is σ = 1268342673834. Its totient is φ = 1268342673832.

The previous prime is 1268342673803. The next prime is 1268342673841. The reversal of 1268342673833 is 3383762438621.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1130377228864 + 137965444969 = 1063192^2 + 371437^2 .

It is a cyclic number.

It is not a de Polignac number, because 1268342673833 - 2¹⁸ = 1268342411689 is a prime.

It is not a weakly prime, because it can be changed into another prime (1268342673803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 634171336916 + 634171336917.

It is an arithmetic number, because the mean of its divisors is an integer number (634171336917).

Almost surely, 2^{1268342673833} is an apocalyptic number.

It is an amenable number.

1268342673833 is a deficient number, since it is larger than the sum of its proper divisors (1).

1268342673833 is an equidigital number, since it uses as much as digits as its factorization.

1268342673833 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20901888, while the sum is 56.

The spelling of 1268342673833 in words is "one trillion, two hundred sixty-eight billion, three hundred forty-two million, six hundred seventy-three thousand, eight hundred thirty-three".