549841529169 has 27 divisors (see below), whose sum is σ = 838280841723. Its totient is φ = 347241639744.

The previous prime is 549841529147. The next prime is 549841529179. The reversal of 549841529169 is 961925148945.

The square root of 549841529169 is 741513.

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

549841529169 is a `hidden beast` number, since 5 + 4 + 9 + 8 + 41 + 529 + 1 + 69 = 666.

It can be written as a sum of positive squares in only one way, i.e., 109635818769 + 440205710400 = 331113^2 + 663480^2 .

It is not a de Polignac number, because 549841529169 - 2³⁹ = 85715281 is a prime.

It is a super-2 number, since 2×549841529169² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (549841529179) 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, 42259737 + ... + 42272745.

Almost surely, 2^549841529169 is an apocalyptic number.

549841529169 is the 741513-rd square number.

549841529169 is the 370757-th centered octagonal number.

It is an amenable number.

549841529169 is a deficient number, since it is larger than the sum of its proper divisors (288439312554).

549841529169 is an frugal number, since it uses more digits than its factorization.

549841529169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26062 (or 13031 counting only the distinct ones).

The product of its digits is 27993600, while the sum is 63.

The spelling of 549841529169 in words is "five hundred forty-nine billion, eight hundred forty-one million, five hundred twenty-nine thousand, one hundred sixty-nine".