28228542204276 has 36 divisors (see below), whose sum is σ = 73816015536900. Its totient is φ = 9085048065408.

The previous prime is 28228542204259. The next prime is 28228542204383. The reversal of 28228542204276 is 67240224582282.

28228542204276 is a `hidden beast` number, since 2 + 8 + 2 + 2 + 8 + 542 + 20 + 4 + 2 + 76 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 22216610902500 + 6011931301776 = 4713450^2 + 2451924^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13519415721 + ... + 13519417808.

It is an arithmetic number, because the mean of its divisors is an integer number (2050444876025).

Almost surely, 2^{28228542204276} is an apocalyptic number.

It is an amenable number.

28228542204276 is an abundant number, since it is smaller than the sum of its proper divisors (45587473332624).

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

28228542204276 is a wasteful number, since it uses less digits than its factorization.

28228542204276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27038833568 (or 27038833563 counting only the distinct ones).

The product of its (nonzero) digits is 13762560, while the sum is 54.

The spelling of 28228542204276 in words is "twenty-eight trillion, two hundred twenty-eight billion, five hundred forty-two million, two hundred four thousand, two hundred seventy-six".