28888871600 has 30 divisors (see below), whose sum is σ = 69405514980. Its totient is φ = 11555548480.

The previous prime is 28888871593. The next prime is 28888871617. The reversal of 28888871600 is 617888882.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36110690 + ... + 36111489.

It is an arithmetic number, because the mean of its divisors is an integer number (2313517166).

Almost surely, 2^28888871600 is an apocalyptic number.

28888871600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28888871600 is an abundant number, since it is smaller than the sum of its proper divisors (40516643380).

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

28888871600 is a wasteful number, since it uses less digits than its factorization.

28888871600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72222197 (or 72222186 counting only the distinct ones).

The product of its (nonzero) digits is 2752512, while the sum is 56.

The spelling of 28888871600 in words is "twenty-eight billion, eight hundred eighty-eight million, eight hundred seventy-one thousand, six hundred".