428008575798 has 64 divisors (see below), whose sum is σ = 965731852800. Its totient is φ = 140494759200.

The previous prime is 428008575749. The next prime is 428008575809. The reversal of 428008575798 is 897575800824.

428008575798 is a `hidden beast` number, since 4 + 2 + 8 + 0 + 0 + 8 + 57 + 579 + 8 = 666.

428008575798 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×428008575798² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 780648 + ... + 1210548.

It is an arithmetic number, because the mean of its divisors is an integer number (15089560200).

Almost surely, 2^428008575798 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 428008575798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (482865926400).

428008575798 is an abundant number, since it is smaller than the sum of its proper divisors (537723277002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

428008575798 is a wasteful number, since it uses less digits than its factorization.

428008575798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430194 (or 430188 counting only the distinct ones).

The product of its (nonzero) digits is 45158400, while the sum is 63.

The spelling of 428008575798 in words is "four hundred twenty-eight billion, eight million, five hundred seventy-five thousand, seven hundred ninety-eight".