328503768667 has 4 divisors (see below), whose sum is σ = 328517261296. Its totient is φ = 328490276040.

The previous prime is 328503768601. The next prime is 328503768731. The reversal of 328503768667 is 766867305823.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 328503768667 - 2²⁷ = 328369550939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328503768067) 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, 6709728 + ... + 6758509.

It is an arithmetic number, because the mean of its divisors is an integer number (82129315324).

Almost surely, 2^328503768667 is an apocalyptic number.

328503768667 is a deficient number, since it is larger than the sum of its proper divisors (13492629).

328503768667 is a wasteful number, since it uses less digits than its factorization.

328503768667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13492628.

The product of its (nonzero) digits is 60963840, while the sum is 61.

The spelling of 328503768667 in words is "three hundred twenty-eight billion, five hundred three million, seven hundred sixty-eight thousand, six hundred sixty-seven".