1297427068519 has 2 divisors, whose sum is σ = 1297427068520. Its totient is φ = 1297427068518.

The previous prime is 1297427068513. The next prime is 1297427068537. The reversal of 1297427068519 is 9158607247921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1297427068519 - 2¹¹ = 1297427066471 is a prime.

It is a super-2 number, since 2×1297427068519² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1297427068513) 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, 648713534259 + 648713534260.

It is an arithmetic number, because the mean of its divisors is an integer number (648713534260).

Almost surely, 2^{1297427068519} is an apocalyptic number.

1297427068519 is a deficient number, since it is larger than the sum of its proper divisors (1).

1297427068519 is an equidigital number, since it uses as much as digits as its factorization.

1297427068519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15240960, while the sum is 61.

The spelling of 1297427068519 in words is "one trillion, two hundred ninety-seven billion, four hundred twenty-seven million, sixty-eight thousand, five hundred nineteen".