325564197389 has 4 divisors (see below), whose sum is σ = 325585161660. Its totient is φ = 325543233120.

The previous prime is 325564197379. The next prime is 325564197407. The reversal of 325564197389 is 983791465523.

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

It can be written as a sum of positive squares in 2 ways, for example, as 289137421225 + 36426776164 = 537715^2 + 190858^2 .

It is a cyclic number.

It is not a de Polignac number, because 325564197389 - 2¹⁶ = 325564131853 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 (325564197319) 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 3 ways as a sum of consecutive naturals, for example, 10458824 + ... + 10489905.

It is an arithmetic number, because the mean of its divisors is an integer number (81396290415).

Almost surely, 2^325564197389 is an apocalyptic number.

It is an amenable number.

325564197389 is a deficient number, since it is larger than the sum of its proper divisors (20964271).

325564197389 is a wasteful number, since it uses less digits than its factorization.

325564197389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20964270.

The product of its digits is 48988800, while the sum is 62.

The spelling of 325564197389 in words is "three hundred twenty-five billion, five hundred sixty-four million, one hundred ninety-seven thousand, three hundred eighty-nine".