184936981849 has 27 divisors (see below), whose sum is σ = 193378508253. Its totient is φ = 176861204352.

The previous prime is 184936981841. The next prime is 184936981907. The reversal of 184936981849 is 948189639481.

The square root of 184936981849 is 430043.

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

184936981849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4447956249 + 180489025600 = 66693^2 + 424840^2 .

It is not a de Polignac number, because 184936981849 - 2³ = 184936981841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (184936981841) 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 26 ways as a sum of consecutive naturals, for example, 1349904909 + ... + 1349905045.

Almost surely, 2^184936981849 is an apocalyptic number.

184936981849 is the 430043-rd square number.

184936981849 is the 215022-nd centered octagonal number.

It is an amenable number.

184936981849 is a deficient number, since it is larger than the sum of its proper divisors (8441526404).

184936981849 is an frugal number, since it uses more digits than its factorization.

184936981849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506 (or 253 counting only the distinct ones).

The product of its digits is 107495424, while the sum is 70.

The spelling of 184936981849 in words is "one hundred eighty-four billion, nine hundred thirty-six million, nine hundred eighty-one thousand, eight hundred forty-nine".