328563188694369 has 24 divisors (see below), whose sum is σ = 481230335600352. Its totient is φ = 215979661932480.

The previous prime is 328563188694341. The next prime is 328563188694407. The reversal of 328563188694369 is 963496881365823.

328563188694369 is a `hidden beast` number, since 3 + 2 + 8 + 563 + 1 + 8 + 8 + 6 + 9 + 43 + 6 + 9 = 666.

It is not a de Polignac number, because 328563188694369 - 2¹⁷ = 328563188563297 is a prime.

It is a super-2 number, since 2×328563188694369² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (328563188694569) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69332907 + ... + 73920080.

It is an arithmetic number, because the mean of its divisors is an integer number (20051263983348).

Almost surely, 2^{328563188694369} is an apocalyptic number.

It is an amenable number.

328563188694369 is a deficient number, since it is larger than the sum of its proper divisors (152667146905983).

328563188694369 is a wasteful number, since it uses less digits than its factorization.

328563188694369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143256557 (or 143256554 counting only the distinct ones).

The product of its digits is 9674588160, while the sum is 81.

The spelling of 328563188694369 in words is "three hundred twenty-eight trillion, five hundred sixty-three billion, one hundred eighty-eight million, six hundred ninety-four thousand, three hundred sixty-nine".