1775845359361 has 2 divisors, whose sum is σ = 1775845359362. Its totient is φ = 1775845359360.

The previous prime is 1775845359293. The next prime is 1775845359371. The reversal of 1775845359361 is 1639535485771.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1681316782336 + 94528577025 = 1296656^2 + 307455^2 .

It is a cyclic number.

It is not a de Polignac number, because 1775845359361 - 2¹³ = 1775845351169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1775845359293 and 1775845359302.

It is not a weakly prime, because it can be changed into another prime (1775845359371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 887922679680 + 887922679681.

It is an arithmetic number, because the mean of its divisors is an integer number (887922679681).

Almost surely, 2^{1775845359361} is an apocalyptic number.

It is an amenable number.

1775845359361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1775845359361 is an equidigital number, since it uses as much as digits as its factorization.

1775845359361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 95256000, while the sum is 64.

The spelling of 1775845359361 in words is "one trillion, seven hundred seventy-five billion, eight hundred forty-five million, three hundred fifty-nine thousand, three hundred sixty-one".