427645562173 has 16 divisors (see below), whose sum is σ = 451364847040. Its totient is φ = 404048736000.

The previous prime is 427645562171. The next prime is 427645562189. The reversal of 427645562173 is 371265546724.

It is a cyclic number.

It is not a de Polignac number, because 427645562173 - 2¹ = 427645562171 is a prime.

It is a super-3 number, since 3×427645562173³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 427645562173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427645562171) 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, 12464863 + ... + 12499123.

It is an arithmetic number, because the mean of its divisors is an integer number (28210302940).

Almost surely, 2^427645562173 is an apocalyptic number.

It is an amenable number.

427645562173 is a deficient number, since it is larger than the sum of its proper divisors (23719284867).

427645562173 is a wasteful number, since it uses less digits than its factorization.

427645562173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36028.

The product of its digits is 8467200, while the sum is 52.

The spelling of 427645562173 in words is "four hundred twenty-seven billion, six hundred forty-five million, five hundred sixty-two thousand, one hundred seventy-three".