245343320203489 has 2 divisors, whose sum is σ = 245343320203490. Its totient is φ = 245343320203488.

The previous prime is 245343320203463. The next prime is 245343320203511. The reversal of 245343320203489 is 984302023343542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 239218561422864 + 6124758780625 = 15466692^2 + 2474825^2 .

It is a cyclic number.

It is not a de Polignac number, because 245343320203489 - 2³⁷ = 245205881250017 is a prime.

It is not a weakly prime, because it can be changed into another prime (245343320203409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122671660101744 + 122671660101745.

It is an arithmetic number, because the mean of its divisors is an integer number (122671660101745).

Almost surely, 2^{245343320203489} is an apocalyptic number.

It is an amenable number.

245343320203489 is a deficient number, since it is larger than the sum of its proper divisors (1).

245343320203489 is an equidigital number, since it uses as much as digits as its factorization.

245343320203489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14929920, while the sum is 52.

The spelling of 245343320203489 in words is "two hundred forty-five trillion, three hundred forty-three billion, three hundred twenty million, two hundred three thousand, four hundred eighty-nine".