28810588028 has 24 divisors (see below), whose sum is σ = 50881137552. Its totient is φ = 14273202944.

The previous prime is 28810587941. The next prime is 28810588067. The reversal of 28810588028 is 82088501882.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1707851 + ... + 1724637.

It is an arithmetic number, because the mean of its divisors is an integer number (2120047398).

Almost surely, 2^28810588028 is an apocalyptic number.

It is an amenable number.

28810588028 is a deficient number, since it is larger than the sum of its proper divisors (22070549524).

28810588028 is a wasteful number, since it uses less digits than its factorization.

28810588028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20701 (or 20699 counting only the distinct ones).

The product of its (nonzero) digits is 655360, while the sum is 50.

The spelling of 28810588028 in words is "twenty-eight billion, eight hundred ten million, five hundred eighty-eight thousand, twenty-eight".