427645608009 has 16 divisors (see below), whose sum is σ = 577149076224. Its totient is φ = 281620619600.

The previous prime is 427645607993. The next prime is 427645608037. The reversal of 427645608009 is 900806546724.

It is a cyclic number.

It is not a de Polignac number, because 427645608009 - 2⁴ = 427645607993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (427645608209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1612594 + ... + 1858964.

It is an arithmetic number, because the mean of its divisors is an integer number (36071817264).

Almost surely, 2^427645608009 is an apocalyptic number.

It is an amenable number.

427645608009 is a deficient number, since it is larger than the sum of its proper divisors (149503468215).

427645608009 is a wasteful number, since it uses less digits than its factorization.

427645608009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253428.

The product of its (nonzero) digits is 2903040, while the sum is 51.

The spelling of 427645608009 in words is "four hundred twenty-seven billion, six hundred forty-five million, six hundred eight thousand, nine".