428623065055 has 16 divisors (see below), whose sum is σ = 520187581440. Its totient is φ = 339006083328.

The previous prime is 428623065019. The next prime is 428623065061. The reversal of 428623065055 is 550560326824.

It is a cyclic number.

It is not a de Polignac number, because 428623065055 - 2⁷ = 428623064927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 428623064996 and 428623065014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4106089 + ... + 4209181.

It is an arithmetic number, because the mean of its divisors is an integer number (32511723840).

Almost surely, 2^428623065055 is an apocalyptic number.

428623065055 is a deficient number, since it is larger than the sum of its proper divisors (91564516385).

428623065055 is a wasteful number, since it uses less digits than its factorization.

428623065055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112530.

The product of its (nonzero) digits is 1728000, while the sum is 46.

The spelling of 428623065055 in words is "four hundred twenty-eight billion, six hundred twenty-three million, sixty-five thousand, fifty-five".