326685379647 has 32 divisors (see below), whose sum is σ = 491154635520. Its totient is φ = 191444544000.

The previous prime is 326685379597. The next prime is 326685379693. The reversal of 326685379647 is 746973586623.

It is not a de Polignac number, because 326685379647 - 2³⁴ = 309505510463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326685379247) 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, 1256554 + ... + 1494087.

It is an arithmetic number, because the mean of its divisors is an integer number (15348582360).

Almost surely, 2^326685379647 is an apocalyptic number.

326685379647 is a deficient number, since it is larger than the sum of its proper divisors (164469255873).

326685379647 is a wasteful number, since it uses less digits than its factorization.

326685379647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2750775.

The product of its digits is 274337280, while the sum is 66.

The spelling of 326685379647 in words is "three hundred twenty-six billion, six hundred eighty-five million, three hundred seventy-nine thousand, six hundred forty-seven".