245433323309 has 2 divisors, whose sum is σ = 245433323310. Its totient is φ = 245433323308.

The previous prime is 245433323293. The next prime is 245433323323. The reversal of 245433323309 is 903323334542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 168754175209 + 76679148100 = 410797^2 + 276910^2 .

It is a cyclic number.

It is not a de Polignac number, because 245433323309 - 2⁴ = 245433323293 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245433323609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122716661654 + 122716661655.

It is an arithmetic number, because the mean of its divisors is an integer number (122716661655).

Almost surely, 2^245433323309 is an apocalyptic number.

It is an amenable number.

245433323309 is a deficient number, since it is larger than the sum of its proper divisors (1).

245433323309 is an equidigital number, since it uses as much as digits as its factorization.

245433323309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 699840, while the sum is 41.

The spelling of 245433323309 in words is "two hundred forty-five billion, four hundred thirty-three million, three hundred twenty-three thousand, three hundred nine".