425056111789 has 2 divisors, whose sum is σ = 425056111790. Its totient is φ = 425056111788.

The previous prime is 425056111783. The next prime is 425056111793. The reversal of 425056111789 is 987111650524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 273644072100 + 151412039689 = 523110^2 + 389117^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-425056111789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425056111783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212528055894 + 212528055895.

It is an arithmetic number, because the mean of its divisors is an integer number (212528055895).

Almost surely, 2^425056111789 is an apocalyptic number.

It is an amenable number.

425056111789 is a deficient number, since it is larger than the sum of its proper divisors (1).

425056111789 is an equidigital number, since it uses as much as digits as its factorization.

425056111789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 604800, while the sum is 49.

The spelling of 425056111789 in words is "four hundred twenty-five billion, fifty-six million, one hundred eleven thousand, seven hundred eighty-nine".