305648197327 has 4 divisors (see below), whose sum is σ = 333434397096. Its totient is φ = 277861997560.

The previous prime is 305648197303. The next prime is 305648197343. The reversal of 305648197327 is 723791846503.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 305648197327 - 2¹⁹ = 305647673039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305648197397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13893099868 + ... + 13893099889.

It is an arithmetic number, because the mean of its divisors is an integer number (83358599274).

It is a 1-persistent number, because it is pandigital, but 2⋅305648197327 = 611296394654 is not.

Almost surely, 2^305648197327 is an apocalyptic number.

305648197327 is a deficient number, since it is larger than the sum of its proper divisors (27786199769).

305648197327 is a wasteful number, since it uses less digits than its factorization.

305648197327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27786199768.

The product of its (nonzero) digits is 7620480, while the sum is 55.

The spelling of 305648197327 in words is "three hundred five billion, six hundred forty-eight million, one hundred ninety-seven thousand, three hundred twenty-seven".