328380265547 has 4 divisors (see below), whose sum is σ = 328381973136. Its totient is φ = 328378557960.

The previous prime is 328380265513. The next prime is 328380265589. The reversal of 328380265547 is 745562083823.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-328380265547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328380265597) 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, 522479 + ... + 964232.

It is an arithmetic number, because the mean of its divisors is an integer number (82095493284).

Almost surely, 2^328380265547 is an apocalyptic number.

328380265547 is a deficient number, since it is larger than the sum of its proper divisors (1707589).

328380265547 is a wasteful number, since it uses less digits than its factorization.

328380265547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1707588.

The product of its (nonzero) digits is 9676800, while the sum is 53.

The spelling of 328380265547 in words is "three hundred twenty-eight billion, three hundred eighty million, two hundred sixty-five thousand, five hundred forty-seven".