327481391961 has 32 divisors (see below), whose sum is σ = 487901867520. Its totient is φ = 217087091712.

The previous prime is 327481391933. The next prime is 327481391969. The reversal of 327481391961 is 169193184723.

It is not a de Polignac number, because 327481391961 - 2⁷ = 327481391833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 327481391898 and 327481391907.

It is not an unprimeable number, because it can be changed into a prime (327481391969) 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 31 ways as a sum of consecutive naturals, for example, 11935120 + ... + 11962526.

It is an arithmetic number, because the mean of its divisors is an integer number (15246933360).

Almost surely, 2^327481391961 is an apocalyptic number.

It is an amenable number.

327481391961 is a deficient number, since it is larger than the sum of its proper divisors (160420475559).

327481391961 is a wasteful number, since it uses less digits than its factorization.

327481391961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29902 (or 29896 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The spelling of 327481391961 in words is "three hundred twenty-seven billion, four hundred eighty-one million, three hundred ninety-one thousand, nine hundred sixty-one".