28500328084 has 12 divisors (see below), whose sum is σ = 49876866144. Its totient is φ = 14249794904.

The previous prime is 28500328081. The next prime is 28500328097. The reversal of 28500328084 is 48082300582.

It is a super-2 number, since 2×28500328084² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28500328081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155139 + ... + 284725.

It is an arithmetic number, because the mean of its divisors is an integer number (4156405512).

Almost surely, 2^28500328084 is an apocalyptic number.

It is an amenable number.

28500328084 is a deficient number, since it is larger than the sum of its proper divisors (21376538060).

28500328084 is a wasteful number, since it uses less digits than its factorization.

28500328084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184574 (or 184572 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 40.

The spelling of 28500328084 in words is "twenty-eight billion, five hundred million, three hundred twenty-eight thousand, eighty-four".