428643578575 has 6 divisors (see below), whose sum is σ = 531518037464. Its totient is φ = 342914862840.

The previous prime is 428643578551. The next prime is 428643578579. The reversal of 428643578575 is 575875346824.

It is not a de Polignac number, because 428643578575 - 2⁵ = 428643578543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428643578579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8572871547 + ... + 8572871596.

Almost surely, 2^428643578575 is an apocalyptic number.

428643578575 is a deficient number, since it is larger than the sum of its proper divisors (102874458889).

428643578575 is a wasteful number, since it uses less digits than its factorization.

428643578575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17145743153 (or 17145743148 counting only the distinct ones).

The product of its digits is 225792000, while the sum is 64.

The spelling of 428643578575 in words is "four hundred twenty-eight billion, six hundred forty-three million, five hundred seventy-eight thousand, five hundred seventy-five".