245443411789 has 2 divisors, whose sum is σ = 245443411790. Its totient is φ = 245443411788.

The previous prime is 245443411739. The next prime is 245443411817. The reversal of 245443411789 is 987114344542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 173663892900 + 71779518889 = 416730^2 + 267917^2 .

It is a cyclic number.

It is not a de Polignac number, because 245443411789 - 2¹¹ = 245443409741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245443411739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122721705894 + 122721705895.

It is an arithmetic number, because the mean of its divisors is an integer number (122721705895).

Almost surely, 2^245443411789 is an apocalyptic number.

It is an amenable number.

245443411789 is a deficient number, since it is larger than the sum of its proper divisors (1).

245443411789 is an equidigital number, since it uses as much as digits as its factorization.

245443411789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3870720, while the sum is 52.

The spelling of 245443411789 in words is "two hundred forty-five billion, four hundred forty-three million, four hundred eleven thousand, seven hundred eighty-nine".