541311486561 has 6 divisors (see below), whose sum is σ = 781894369490. Its totient is φ = 360874324368.

The previous prime is 541311486509. The next prime is 541311486577. The reversal of 541311486561 is 165684113145.

541311486561 is a `hidden beast` number, since 5 + 4 + 1 + 3 + 1 + 1 + 4 + 86 + 561 = 666.

It can be written as a sum of positive squares in only one way, i.e., 491457081600 + 49854404961 = 701040^2 + 223281^2 .

It is not a de Polignac number, because 541311486561 - 2⁶ = 541311486497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (541311486361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30072860356 + ... + 30072860373.

Almost surely, 2^541311486561 is an apocalyptic number.

It is an amenable number.

541311486561 is a deficient number, since it is larger than the sum of its proper divisors (240582882929).

541311486561 is a wasteful number, since it uses less digits than its factorization.

541311486561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60145720735 (or 60145720732 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The spelling of 541311486561 in words is "five hundred forty-one billion, three hundred eleven million, four hundred eighty-six thousand, five hundred sixty-one".