1814560894561 has 2 divisors, whose sum is σ = 1814560894562. Its totient is φ = 1814560894560.

The previous prime is 1814560894507. The next prime is 1814560894579. The reversal of 1814560894561 is 1654980654181.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1782865857600 + 31695036961 = 1335240^2 + 178031^2 .

It is a cyclic number.

It is not a de Polignac number, because 1814560894561 - 2¹⁵ = 1814560861793 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1814560894496 and 1814560894505.

It is not a weakly prime, because it can be changed into another prime (1814560894591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 907280447280 + 907280447281.

It is an arithmetic number, because the mean of its divisors is an integer number (907280447281).

Almost surely, 2^{1814560894561} is an apocalyptic number.

It is an amenable number.

1814560894561 is a deficient number, since it is larger than the sum of its proper divisors (1).

1814560894561 is an equidigital number, since it uses as much as digits as its factorization.

1814560894561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8294400, while the sum is 58.

The spelling of 1814560894561 in words is "one trillion, eight hundred fourteen billion, five hundred sixty million, eight hundred ninety-four thousand, five hundred sixty-one".