328217880257 has 4 divisors (see below), whose sum is σ = 328219419696. Its totient is φ = 328216340820.

The previous prime is 328217880233. The next prime is 328217880259. The reversal of 328217880257 is 752088712823.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 328217880257 - 2¹⁰ = 328217879233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 328217880199 and 328217880208.

It is not an unprimeable number, because it can be changed into a prime (328217880259) 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, 386219 + ... + 897552.

It is an arithmetic number, because the mean of its divisors is an integer number (82054854924).

Almost surely, 2^328217880257 is an apocalyptic number.

It is an amenable number.

328217880257 is a deficient number, since it is larger than the sum of its proper divisors (1539439).

328217880257 is a wasteful number, since it uses less digits than its factorization.

328217880257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1539438.

The product of its (nonzero) digits is 3010560, while the sum is 53.

The spelling of 328217880257 in words is "three hundred twenty-eight billion, two hundred seventeen million, eight hundred eighty thousand, two hundred fifty-seven".