1285716868559 has 2 divisors, whose sum is σ = 1285716868560. Its totient is φ = 1285716868558.

The previous prime is 1285716868489. The next prime is 1285716868571. The reversal of 1285716868559 is 9558686175821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1285716868559 - 2¹⁶ = 1285716803023 is a prime.

It is a super-3 number, since 3×1285716868559³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1285716868492 and 1285716868501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1285716867559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 642858434279 + 642858434280.

It is an arithmetic number, because the mean of its divisors is an integer number (642858434280).

Almost surely, 2^{1285716868559} is an apocalyptic number.

1285716868559 is a deficient number, since it is larger than the sum of its proper divisors (1).

1285716868559 is an equidigital number, since it uses as much as digits as its factorization.

1285716868559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304000, while the sum is 71.

The spelling of 1285716868559 in words is "one trillion, two hundred eighty-five billion, seven hundred sixteen million, eight hundred sixty-eight thousand, five hundred fifty-nine".