28855293745850 has 384 divisors, whose sum is σ = 66177516367872. Its totient is φ = 9210952396800.

The previous prime is 28855293745847. The next prime is 28855293745871. The reversal of 28855293745850 is 5854739255882.

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 191 ways as a sum of consecutive naturals, for example, 32531334107 + ... + 32531334993.

It is an arithmetic number, because the mean of its divisors is an integer number (172337282208).

Almost surely, 2^{28855293745850} is an apocalyptic number.

28855293745850 is an abundant number, since it is smaller than the sum of its proper divisors (37322222622022).

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

28855293745850 is a wasteful number, since it uses less digits than its factorization.

28855293745850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1870 (or 1865 counting only the distinct ones).

The product of its (nonzero) digits is 967680000, while the sum is 71.

The spelling of 28855293745850 in words is "twenty-eight trillion, eight hundred fifty-five billion, two hundred ninety-three million, seven hundred forty-five thousand, eight hundred fifty".