28000855828830 has 16 divisors (see below), whose sum is σ = 67202053989264. Its totient is φ = 7466894887680.

The previous prime is 28000855828789. The next prime is 28000855828853. The reversal of 28000855828830 is 3882855800082.

It is a congruent number.

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, 466680930451 + ... + 466680930510.

It is an arithmetic number, because the mean of its divisors is an integer number (4200128374329).

Almost surely, 2^{28000855828830} is an apocalyptic number.

28000855828830 is an abundant number, since it is smaller than the sum of its proper divisors (39201198160434).

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

28000855828830 is a wasteful number, since it uses less digits than its factorization.

28000855828830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933361860971.

The product of its (nonzero) digits is 9830400, while the sum is 57.

The spelling of 28000855828830 in words is "twenty-eight trillion, eight hundred fifty-five million, eight hundred twenty-eight thousand, eight hundred thirty".