328513996511 has 4 divisors (see below), whose sum is σ = 329167106352. Its totient is φ = 327860886672.

The previous prime is 328513996493. The next prime is 328513996513. The reversal of 328513996511 is 115699315823.

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

It is a cyclic number.

It is not a de Polignac number, because 328513996511 - 2³⁸ = 53636089567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328513996513) 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, 326554166 + ... + 326555171.

It is an arithmetic number, because the mean of its divisors is an integer number (82291776588).

Almost surely, 2^328513996511 is an apocalyptic number.

328513996511 is a deficient number, since it is larger than the sum of its proper divisors (653109841).

328513996511 is an equidigital number, since it uses as much as digits as its factorization.

328513996511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653109840.

The product of its digits is 1749600, while the sum is 53.

The spelling of 328513996511 in words is "three hundred twenty-eight billion, five hundred thirteen million, nine hundred ninety-six thousand, five hundred eleven".