28858657168 has 40 divisors (see below), whose sum is σ = 61089232896. Its totient is φ = 13097673600.

The previous prime is 28858657141. The next prime is 28858657169. The reversal of 28858657168 is 86175685882.

It is not an unprimeable number, because it can be changed into a prime (28858657169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7696 + ... + 240367.

Almost surely, 2^28858657168 is an apocalyptic number.

It is an amenable number.

28858657168 is an abundant number, since it is smaller than the sum of its proper divisors (32230575728).

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

28858657168 is a wasteful number, since it uses less digits than its factorization.

28858657168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248743 (or 248737 counting only the distinct ones).

The product of its digits is 51609600, while the sum is 64.

The spelling of 28858657168 in words is "twenty-eight billion, eight hundred fifty-eight million, six hundred fifty-seven thousand, one hundred sixty-eight".