328621414545 has 12 divisors (see below), whose sum is σ = 569610451956. Its totient is φ = 175264754400.

The previous prime is 328621414529. The next prime is 328621414591. The reversal of 328621414545 is 545414126823.

328621414545 is a `hidden beast` number, since 3 + 2 + 8 + 62 + 1 + 41 + 4 + 545 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 155022525441 + 173598889104 = 393729^2 + 416652^2 .

It is not a de Polignac number, because 328621414545 - 2⁴ = 328621414529 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 7302698101 = 328621414545 / (3 + 2 + 8 + 6 + 2 + 1 + 4 + 1 + 4 + 5 + 4 + 5).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 328621414545.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3651349006 + ... + 3651349095.

It is an arithmetic number, because the mean of its divisors is an integer number (47467537663).

Almost surely, 2^328621414545 is an apocalyptic number.

It is an amenable number.

328621414545 is a deficient number, since it is larger than the sum of its proper divisors (240989037411).

328621414545 is a wasteful number, since it uses less digits than its factorization.

328621414545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7302698112 (or 7302698109 counting only the distinct ones).

The product of its digits is 921600, while the sum is 45.

The spelling of 328621414545 in words is "three hundred twenty-eight billion, six hundred twenty-one million, four hundred fourteen thousand, five hundred forty-five".