1341985550481 has 81 divisors (see below), whose sum is σ = 2058862231881. Its totient is φ = 842251479696.

The previous prime is 1341985550467. The next prime is 1341985550533. The reversal of 1341985550481 is 1840555891431.

The square root of 1341985550481 is 1158441.

It is a perfect power (a square), and thus also a powerful number.

1341985550481 is a `hidden beast` number, since 1 + 3 + 4 + 1 + 9 + 8 + 5 + 550 + 4 + 81 = 666.

It is not a de Polignac number, because 1341985550481 - 2¹⁵ = 1341985517713 is a prime.

It is a super-2 number, since 2×1341985550481² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1341985550401) 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 in 80 ways as a sum of consecutive naturals, for example, 8233040106 + ... + 8233040268.

Almost surely, 2^{1341985550481} is an apocalyptic number.

1341985550481 is the 1158441-st square number.

1341985550481 is the 579221-st centered octagonal number.

It is an amenable number.

1341985550481 is a deficient number, since it is larger than the sum of its proper divisors (716876681400).

1341985550481 is an equidigital number, since it uses as much as digits as its factorization.

1341985550481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584 (or 292 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 54.

The spelling of 1341985550481 in words is "one trillion, three hundred forty-one billion, nine hundred eighty-five million, five hundred fifty thousand, four hundred eighty-one".