28500457068 has 24 divisors (see below), whose sum is σ = 73890074160. Its totient is φ = 9500152320.

The previous prime is 28500457033. The next prime is 28500457081. The reversal of 28500457068 is 86075400582.

28500457068 is a `hidden beast` number, since 28 + 50 + 0 + 4 + 570 + 6 + 8 = 666.

It is a super-2 number, since 2×28500457068² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 131946453 + ... + 131946668.

It is an arithmetic number, because the mean of its divisors is an integer number (3078753090).

Almost surely, 2^28500457068 is an apocalyptic number.

It is an amenable number.

28500457068 is an abundant number, since it is smaller than the sum of its proper divisors (45389617092).

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

28500457068 is a wasteful number, since it uses less digits than its factorization.

28500457068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263893134 (or 263893126 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The spelling of 28500457068 in words is "twenty-eight billion, five hundred million, four hundred fifty-seven thousand, sixty-eight".