328276586489 has 4 divisors (see below), whose sum is σ = 328718413056. Its totient is φ = 327834759924.

The previous prime is 328276586441. The next prime is 328276586557. The reversal of 328276586489 is 984685672823.

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, and also an emirpimes, since its reverse is a distinct semiprime: 984685672823 = 15493 ⋅63556811.

It is a cyclic number.

It is not a de Polignac number, because 328276586489 - 2¹⁶ = 328276520953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328276582489) 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, 220912169 + ... + 220913654.

It is an arithmetic number, because the mean of its divisors is an integer number (82179603264).

Almost surely, 2^328276586489 is an apocalyptic number.

It is an amenable number.

328276586489 is a deficient number, since it is larger than the sum of its proper divisors (441826567).

328276586489 is an equidigital number, since it uses as much as digits as its factorization.

328276586489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441826566.

The product of its digits is 278691840, while the sum is 68.

The spelling of 328276586489 in words is "three hundred twenty-eight billion, two hundred seventy-six million, five hundred eighty-six thousand, four hundred eighty-nine".