245619488813 has 2 divisors, whose sum is σ = 245619488814. Its totient is φ = 245619488812.

The previous prime is 245619488753. The next prime is 245619488819. The reversal of 245619488813 is 318884916542.

245619488813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 245617377604 + 2111209 = 495598^2 + 1453^2 .

It is a cyclic number.

It is not a de Polignac number, because 245619488813 - 2¹² = 245619484717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245619488819) 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 as a sum of consecutive naturals, namely, 122809744406 + 122809744407.

It is an arithmetic number, because the mean of its divisors is an integer number (122809744407).

Almost surely, 2^245619488813 is an apocalyptic number.

It is an amenable number.

245619488813 is a deficient number, since it is larger than the sum of its proper divisors (1).

245619488813 is an equidigital number, since it uses as much as digits as its factorization.

245619488813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13271040, while the sum is 59.

The spelling of 245619488813 in words is "two hundred forty-five billion, six hundred nineteen million, four hundred eighty-eight thousand, eight hundred thirteen".