549767858342641 has 27 divisors (see below), whose sum is σ = 571975570356939. Its totient is φ = 528404499144000.

The previous prime is 549767858342567. The next prime is 549767858342707. The reversal of 549767858342641 is 146243858767945.

The square root of 549767858342641 is 23447129.

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

It can be written as a sum of positive squares in only one way, i.e., 259445789797041 + 290322068545600 = 16107321^2 + 17038840^2 .

It is not a de Polignac number, because 549767858342641 - 2³⁷ = 549630419389169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (549767858342041) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 109756008345 + ... + 109756013353.

Almost surely, 2^{549767858342641} is an apocalyptic number.

549767858342641 is the 23447129-th square number.

549767858342641 is the 11723565-th centered octagonal number.

It is an amenable number.

549767858342641 is a deficient number, since it is larger than the sum of its proper divisors (22207712014298).

549767858342641 is an frugal number, since it uses more digits than its factorization.

549767858342641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10382 (or 5191 counting only the distinct ones).

The product of its digits is 9754214400, while the sum is 79.

The spelling of 549767858342641 in words is "five hundred forty-nine trillion, seven hundred sixty-seven billion, eight hundred fifty-eight million, three hundred forty-two thousand, six hundred forty-one".