428334864580 has 48 divisors (see below), whose sum is σ = 1028277694080. Its totient is φ = 146818522368.

The previous prime is 428334864571. The next prime is 428334864589. The reversal of 428334864580 is 85468433824.

It is an interprime number because it is at equal distance from previous prime (428334864571) and next prime (428334864589).

It is not an unprimeable number, because it can be changed into a prime (428334864589) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121779 + ... + 933541.

It is an arithmetic number, because the mean of its divisors is an integer number (21422451960).

Almost surely, 2^428334864580 is an apocalyptic number.

It is an amenable number.

428334864580 is an abundant number, since it is smaller than the sum of its proper divisors (599942829500).

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

428334864580 is a wasteful number, since it uses less digits than its factorization.

428334864580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815548 (or 815546 counting only the distinct ones).

The product of its (nonzero) digits is 17694720, while the sum is 55.

The spelling of 428334864580 in words is "four hundred twenty-eight billion, three hundred thirty-four million, eight hundred sixty-four thousand, five hundred eighty".