328218456687 has 8 divisors (see below), whose sum is σ = 477408664320. Its totient is φ = 198920276760.

The previous prime is 328218456653. The next prime is 328218456707. The reversal of 328218456687 is 786654812823.

328218456687 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 328218456687 - 2¹² = 328218452591 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 328218456687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328218456607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4973006887 + ... + 4973006952.

It is an arithmetic number, because the mean of its divisors is an integer number (59676083040).

Almost surely, 2^328218456687 is an apocalyptic number.

328218456687 is a deficient number, since it is larger than the sum of its proper divisors (149190207633).

328218456687 is a wasteful number, since it uses less digits than its factorization.

328218456687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9946013853.

The product of its digits is 30965760, while the sum is 60.

The spelling of 328218456687 in words is "three hundred twenty-eight billion, two hundred eighteen million, four hundred fifty-six thousand, six hundred eighty-seven".