328871575881 has 12 divisors (see below), whose sum is σ = 475827139060. Its totient is φ = 218882908800.

The previous prime is 328871575873. The next prime is 328871575937. The reversal of 328871575881 is 188575178823.

328871575881 is a `hidden beast` number, since 32 + 8 + 8 + 7 + 15 + 7 + 588 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 101047694400 + 227823881481 = 317880^2 + 477309^2 .

It is not a de Polignac number, because 328871575881 - 2³ = 328871575873 is a prime.

It is a super-2 number, since 2×328871575881² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328871575811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30394996 + ... + 30405813.

Almost surely, 2^328871575881 is an apocalyptic number.

It is an amenable number.

328871575881 is a deficient number, since it is larger than the sum of its proper divisors (146955563179).

328871575881 is a wasteful number, since it uses less digits than its factorization.

328871575881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60801416 (or 60801413 counting only the distinct ones).

The product of its digits is 30105600, while the sum is 63.

The spelling of 328871575881 in words is "three hundred twenty-eight billion, eight hundred seventy-one million, five hundred seventy-five thousand, eight hundred eighty-one".