28855210252 has 36 divisors (see below), whose sum is σ = 56286368208. Its totient is φ = 12931256800.

The previous prime is 28855210207. The next prime is 28855210271. The reversal of 28855210252 is 25201255882.

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 11 ways as a sum of consecutive naturals, for example, 385483 + ... + 454210.

It is an arithmetic number, because the mean of its divisors is an integer number (1563510228).

Almost surely, 2^28855210252 is an apocalyptic number.

28855210252 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28855210252 is a deficient number, since it is larger than the sum of its proper divisors (27431157956).

28855210252 is a wasteful number, since it uses less digits than its factorization.

28855210252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839790 (or 839777 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 40.

The spelling of 28855210252 in words is "twenty-eight billion, eight hundred fifty-five million, two hundred ten thousand, two hundred fifty-two".