180740336409 has 12 divisors (see below), whose sum is σ = 268125304356. Its totient is φ = 117236974752.

The previous prime is 180740336393. The next prime is 180740336437. The reversal of 180740336409 is 904633047081.

180740336409 is a `hidden beast` number, since 180 + 7 + 403 + 3 + 64 + 0 + 9 = 666.

180740336409 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 2 ways, for example, as 167052038400 + 13688298009 = 408720^2 + 116997^2 .

It is not a de Polignac number, because 180740336409 - 2⁴ = 180740336393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (180740336479) 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 11 ways as a sum of consecutive naturals, for example, 271381554 + ... + 271382219.

It is an arithmetic number, because the mean of its divisors is an integer number (22343775363).

Almost surely, 2^180740336409 is an apocalyptic number.

It is an amenable number.

180740336409 is a deficient number, since it is larger than the sum of its proper divisors (87384967947).

180740336409 is a wasteful number, since it uses less digits than its factorization.

180740336409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542763816 (or 542763813 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 180740336409 in words is "one hundred eighty billion, seven hundred forty million, three hundred thirty-six thousand, four hundred nine".