427374489589 has 2 divisors, whose sum is σ = 427374489590. Its totient is φ = 427374489588.

The previous prime is 427374489559. The next prime is 427374489631. The reversal of 427374489589 is 985984473724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 389074042564 + 38300447025 = 623758^2 + 195705^2 .

It is a cyclic number.

It is not a de Polignac number, because 427374489589 - 2³¹ = 425227005941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427374489559) 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, 213687244794 + 213687244795.

It is an arithmetic number, because the mean of its divisors is an integer number (213687244795).

Almost surely, 2^427374489589 is an apocalyptic number.

It is an amenable number.

427374489589 is a deficient number, since it is larger than the sum of its proper divisors (1).

427374489589 is an equidigital number, since it uses as much as digits as its factorization.

427374489589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 487710720, while the sum is 70.

The spelling of 427374489589 in words is "four hundred twenty-seven billion, three hundred seventy-four million, four hundred eighty-nine thousand, five hundred eighty-nine".