328539422409 has 32 divisors (see below), whose sum is σ = 512917225344. Its totient is φ = 184834990080.

The previous prime is 328539422377. The next prime is 328539422417. The reversal of 328539422409 is 904224935823.

It is a happy number.

It is not a de Polignac number, because 328539422409 - 2⁵ = 328539422377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (328539422459) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3970224 + ... + 4052129.

It is an arithmetic number, because the mean of its divisors is an integer number (16028663292).

Almost surely, 2^328539422409 is an apocalyptic number.

It is an amenable number.

328539422409 is a deficient number, since it is larger than the sum of its proper divisors (184377802935).

328539422409 is a wasteful number, since it uses less digits than its factorization.

328539422409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8022457.

The product of its (nonzero) digits is 3732480, while the sum is 51.

The spelling of 328539422409 in words is "three hundred twenty-eight billion, five hundred thirty-nine million, four hundred twenty-two thousand, four hundred nine".