1350256656569 has 2 divisors, whose sum is σ = 1350256656570. Its totient is φ = 1350256656568.

The previous prime is 1350256656563. The next prime is 1350256656613. The reversal of 1350256656569 is 9656566520531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 885834851344 + 464421805225 = 941188^2 + 681485^2 .

It is a cyclic number.

It is not a de Polignac number, because 1350256656569 - 2³² = 1345961689273 is a prime.

It is a super-2 number, since 2×1350256656569² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1350256656563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 675128328284 + 675128328285.

It is an arithmetic number, because the mean of its divisors is an integer number (675128328285).

Almost surely, 2^{1350256656569} is an apocalyptic number.

It is an amenable number.

1350256656569 is a deficient number, since it is larger than the sum of its proper divisors (1).

1350256656569 is an equidigital number, since it uses as much as digits as its factorization.

1350256656569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43740000, while the sum is 59.

The spelling of 1350256656569 in words is "one trillion, three hundred fifty billion, two hundred fifty-six million, six hundred fifty-six thousand, five hundred sixty-nine".