428730888582 has 12 divisors (see below), whose sum is σ = 928916925300. Its totient is φ = 142910296188.

The previous prime is 428730888563. The next prime is 428730888601. The reversal of 428730888582 is 285888037824.

428730888582 is a `hidden beast` number, since 42 + 8 + 7 + 3 + 0 + 8 + 8 + 8 + 582 = 666.

It is an interprime number because it is at equal distance from previous prime (428730888563) and next prime (428730888601).

It is a super-2 number, since 2×428730888582² (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 5 ways as a sum of consecutive naturals, for example, 11909191332 + ... + 11909191367.

It is an arithmetic number, because the mean of its divisors is an integer number (77409743775).

Almost surely, 2^428730888582 is an apocalyptic number.

428730888582 is an abundant number, since it is smaller than the sum of its proper divisors (500186036718).

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

428730888582 is a wasteful number, since it uses less digits than its factorization.

428730888582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23818382707 (or 23818382704 counting only the distinct ones).

The product of its (nonzero) digits is 55050240, while the sum is 63.

The spelling of 428730888582 in words is "four hundred twenty-eight billion, seven hundred thirty million, eight hundred eighty-eight thousand, five hundred eighty-two".