1285717360061 has 2 divisors, whose sum is σ = 1285717360062. Its totient is φ = 1285717360060.

The previous prime is 1285717360033. The next prime is 1285717360093. The reversal of 1285717360061 is 1600637175821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1024295805625 + 261421554436 = 1012075^2 + 511294^2 .

It is an emirp because it is prime and its reverse (1600637175821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1285717360061 - 2¹⁰ = 1285717359037 is a prime.

It is a super-3 number, since 3×1285717360061³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1285717359988 and 1285717360015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1285717380061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 642858680030 + 642858680031.

It is an arithmetic number, because the mean of its divisors is an integer number (642858680031).

Almost surely, 2^{1285717360061} is an apocalyptic number.

It is an amenable number.

1285717360061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1285717360061 is an equidigital number, since it uses as much as digits as its factorization.

1285717360061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 423360, while the sum is 47.

The spelling of 1285717360061 in words is "one trillion, two hundred eighty-five billion, seven hundred seventeen million, three hundred sixty thousand, sixty-one".