28897025888 has 24 divisors (see below), whose sum is σ = 56897946000. Its totient is φ = 14446753920.

The previous prime is 28897025803. The next prime is 28897025917. The reversal of 28897025888 is 88852079882.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235613 + ... + 336611.

It is an arithmetic number, because the mean of its divisors is an integer number (2370747750).

Almost surely, 2^28897025888 is an apocalyptic number.

It is an amenable number.

28897025888 is a deficient number, since it is larger than the sum of its proper divisors (28000920112).

28897025888 is a wasteful number, since it uses less digits than its factorization.

28897025888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109950 (or 109942 counting only the distinct ones).

The product of its (nonzero) digits is 41287680, while the sum is 65.

The spelling of 28897025888 in words is "twenty-eight billion, eight hundred ninety-seven million, twenty-five thousand, eight hundred eighty-eight".