245416328009 has 2 divisors, whose sum is σ = 245416328010. Its totient is φ = 245416328008.

The previous prime is 245416327991. The next prime is 245416328051. The reversal of 245416328009 is 900823614542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 220054810000 + 25361518009 = 469100^2 + 159253^2 .

It is a cyclic number.

It is not a de Polignac number, because 245416328009 - 2⁸ = 245416327753 is a prime.

It is not a weakly prime, because it can be changed into another prime (245416328309) 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, 122708164004 + 122708164005.

It is an arithmetic number, because the mean of its divisors is an integer number (122708164005).

Almost surely, 2^245416328009 is an apocalyptic number.

It is an amenable number.

245416328009 is a deficient number, since it is larger than the sum of its proper divisors (1).

245416328009 is an equidigital number, since it uses as much as digits as its factorization.

245416328009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 245416328009 in words is "two hundred forty-five billion, four hundred sixteen million, three hundred twenty-eight thousand, nine".