328768929517 has 4 divisors (see below), whose sum is σ = 375735919456. Its totient is φ = 281801939580.

The previous prime is 328768929469. The next prime is 328768929523. The reversal of 328768929517 is 715929867823.

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.

It is not a de Polignac number, because 328768929517 - 2¹¹ = 328768927469 is a prime.

It is a super-2 number, since 2×328768929517² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328768929547) 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, 23483494959 + ... + 23483494972.

It is an arithmetic number, because the mean of its divisors is an integer number (93933979864).

Almost surely, 2^328768929517 is an apocalyptic number.

It is an amenable number.

328768929517 is a deficient number, since it is larger than the sum of its proper divisors (46966989939).

328768929517 is an equidigital number, since it uses as much as digits as its factorization.

328768929517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46966989938.

The product of its digits is 91445760, while the sum is 67.

The spelling of 328768929517 in words is "three hundred twenty-eight billion, seven hundred sixty-eight million, nine hundred twenty-nine thousand, five hundred seventeen".