428893885825 has 24 divisors (see below), whose sum is σ = 538169840640. Its totient is φ = 339029116800.

The previous prime is 428893885807. The next prime is 428893885829. The reversal of 428893885825 is 528588398824.

It is not a de Polignac number, because 428893885825 - 2¹⁵ = 428893853057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (428893885829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3243760 + ... + 3373390.

It is an arithmetic number, because the mean of its divisors is an integer number (22423743360).

Almost surely, 2^428893885825 is an apocalyptic number.

It is an amenable number.

428893885825 is a deficient number, since it is larger than the sum of its proper divisors (109275954815).

428893885825 is a wasteful number, since it uses less digits than its factorization.

428893885825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131217 (or 131212 counting only the distinct ones).

The product of its digits is 353894400, while the sum is 70.

The spelling of 428893885825 in words is "four hundred twenty-eight billion, eight hundred ninety-three million, eight hundred eighty-five thousand, eight hundred twenty-five".