368249181309 has 40 divisors (see below), whose sum is σ = 571237514232. Its totient is φ = 236230525440.

The previous prime is 368249181281. The next prime is 368249181323. The reversal of 368249181309 is 903181942863.

368249181309 is a `hidden beast` number, since 368 + 249 + 1 + 8 + 1 + 30 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1736388900 + 366512792409 = 41670^2 + 605403^2 .

It is not a de Polignac number, because 368249181309 - 2⁹ = 368249180797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (368249181329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 517054 + ... + 1001919.

Almost surely, 2^368249181309 is an apocalyptic number.

It is an amenable number.

368249181309 is a deficient number, since it is larger than the sum of its proper divisors (202988332923).

368249181309 is a wasteful number, since it uses less digits than its factorization.

368249181309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1519099 (or 1519090 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The spelling of 368249181309 in words is "three hundred sixty-eight billion, two hundred forty-nine million, one hundred eighty-one thousand, three hundred nine".