427562323789 has 2 divisors, whose sum is σ = 427562323790. Its totient is φ = 427562323788.

The previous prime is 427562323777. The next prime is 427562323813. The reversal of 427562323789 is 987323265724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 377057402500 + 50504921289 = 614050^2 + 224733^2 .

It is a cyclic number.

It is not a de Polignac number, because 427562323789 - 2⁵ = 427562323757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427562321789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213781161894 + 213781161895.

It is an arithmetic number, because the mean of its divisors is an integer number (213781161895).

Almost surely, 2^427562323789 is an apocalyptic number.

It is an amenable number.

427562323789 is a deficient number, since it is larger than the sum of its proper divisors (1).

427562323789 is an equidigital number, since it uses as much as digits as its factorization.

427562323789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30481920, while the sum is 58.

The spelling of 427562323789 in words is "four hundred twenty-seven billion, five hundred sixty-two million, three hundred twenty-three thousand, seven hundred eighty-nine".