427289205908 has 12 divisors (see below), whose sum is σ = 747766537812. Its totient is φ = 213641623680.

The previous prime is 427289205899. The next prime is 427289205923. The reversal of 427289205908 is 809502982724.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 225955721104 + 201333484804 = 475348^2 + 448702^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404885 + ... + 1009212.

It is an arithmetic number, because the mean of its divisors is an integer number (62313878151).

Almost surely, 2^427289205908 is an apocalyptic number.

It is an amenable number.

427289205908 is a deficient number, since it is larger than the sum of its proper divisors (320477331904).

427289205908 is a wasteful number, since it uses less digits than its factorization.

427289205908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1489642 (or 1489640 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 56.

The spelling of 427289205908 in words is "four hundred twenty-seven billion, two hundred eighty-nine million, two hundred five thousand, nine hundred eight".