328175663887 has 4 divisors (see below), whose sum is σ = 339492066120. Its totient is φ = 316859261656.

The previous prime is 328175663873. The next prime is 328175663929. The reversal of 328175663887 is 788366571823.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 788366571823 = 601 ⋅1311758023.

It is a cyclic number.

It is not a de Polignac number, because 328175663887 - 2³¹ = 326028180239 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 (328175663857) 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, 5658201073 + ... + 5658201130.

It is an arithmetic number, because the mean of its divisors is an integer number (84873016530).

Almost surely, 2^328175663887 is an apocalyptic number.

328175663887 is a deficient number, since it is larger than the sum of its proper divisors (11316402233).

328175663887 is a wasteful number, since it uses less digits than its factorization.

328175663887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11316402232.

The product of its digits is 81285120, while the sum is 64.

The spelling of 328175663887 in words is "three hundred twenty-eight billion, one hundred seventy-five million, six hundred sixty-three thousand, eight hundred eighty-seven".