28771909560328 has 32 divisors (see below), whose sum is σ = 58857609143520. Its totient is φ = 13076812720000.

The previous prime is 28771909560263. The next prime is 28771909560337. The reversal of 28771909560328 is 82306590917782.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15728053 + ... + 17461828.

It is an arithmetic number, because the mean of its divisors is an integer number (1839300285735).

Almost surely, 2^{28771909560328} is an apocalyptic number.

It is an amenable number.

28771909560328 is an abundant number, since it is smaller than the sum of its proper divisors (30085699583192).

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

28771909560328 is a wasteful number, since it uses less digits than its factorization.

28771909560328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33199749 (or 33199745 counting only the distinct ones).

The product of its (nonzero) digits is 91445760, while the sum is 67.

The spelling of 28771909560328 in words is "twenty-eight trillion, seven hundred seventy-one billion, nine hundred nine million, five hundred sixty thousand, three hundred twenty-eight".