28895044668 has 48 divisors (see below), whose sum is σ = 77245695744. Its totient is φ = 8235129600.

The previous prime is 28895044639. The next prime is 28895044741. The reversal of 28895044668 is 86644059882.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 395230 + ... + 462597.

It is an arithmetic number, because the mean of its divisors is an integer number (1609285328).

Almost surely, 2^28895044668 is an apocalyptic number.

28895044668 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28895044668 is an abundant number, since it is smaller than the sum of its proper divisors (48350651076).

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

28895044668 is a wasteful number, since it uses less digits than its factorization.

28895044668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858242 (or 858240 counting only the distinct ones).

The product of its (nonzero) digits is 26542080, while the sum is 60.

The spelling of 28895044668 in words is "twenty-eight billion, eight hundred ninety-five million, forty-four thousand, six hundred sixty-eight".