328254348993 has 4 divisors (see below), whose sum is σ = 437672465328. Its totient is φ = 218836232660.

The previous prime is 328254348931. The next prime is 328254349019. The reversal of 328254348993 is 399843452823.

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 a cyclic number.

It is not a de Polignac number, because 328254348993 - 2³⁷ = 190815395521 is a prime.

It is a super-2 number, since 2×328254348993² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (328254340993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54709058163 + ... + 54709058168.

It is an arithmetic number, because the mean of its divisors is an integer number (109418116332).

Almost surely, 2^328254348993 is an apocalyptic number.

It is an amenable number.

328254348993 is a deficient number, since it is larger than the sum of its proper divisors (109418116335).

328254348993 is a wasteful number, since it uses less digits than its factorization.

328254348993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109418116334.

The product of its digits is 44789760, while the sum is 60.

The spelling of 328254348993 in words is "three hundred twenty-eight billion, two hundred fifty-four million, three hundred forty-eight thousand, nine hundred ninety-three".