328671743401 has 3 divisors (see below), whose sum is σ = 328672316701. Its totient is φ = 328671170102.

The previous prime is 328671743357. The next prime is 328671743417. The reversal of 328671743401 is 104347176823.

The square root of 328671743401 is 573299.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 104347176823 = 16477 ⋅6332899.

It is not a de Polignac number, because 328671743401 - 2⁷ = 328671743273 is a prime.

It is a super-2 number, since 2×328671743401² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328671143401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 286650 + ... + 859948.

Almost surely, 2^328671743401 is an apocalyptic number.

328671743401 is the 573299-th square number.

328671743401 is the 286650-th centered octagonal number.

It is an amenable number.

328671743401 is a deficient number, since it is larger than the sum of its proper divisors (573300).

328671743401 is an frugal number, since it uses more digits than its factorization.

328671743401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146598 (or 573299 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 46.

The spelling of 328671743401 in words is "three hundred twenty-eight billion, six hundred seventy-one million, seven hundred forty-three thousand, four hundred one".