328557254429 has 2 divisors, whose sum is σ = 328557254430. Its totient is φ = 328557254428.

The previous prime is 328557254303. The next prime is 328557254449. The reversal of 328557254429 is 924452755823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 181921869529 + 146635384900 = 426523^2 + 382930^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-328557254429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328557254449) 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 as a sum of consecutive naturals, namely, 164278627214 + 164278627215.

It is an arithmetic number, because the mean of its divisors is an integer number (164278627215).

Almost surely, 2^328557254429 is an apocalyptic number.

It is an amenable number.

328557254429 is a deficient number, since it is larger than the sum of its proper divisors (1).

328557254429 is an equidigital number, since it uses as much as digits as its factorization.

328557254429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192000, while the sum is 56.

The spelling of 328557254429 in words is "three hundred twenty-eight billion, five hundred fifty-seven million, two hundred fifty-four thousand, four hundred twenty-nine".