28055884854 has 32 divisors (see below), whose sum is σ = 57457900800. Its totient is φ = 9129380832.

The previous prime is 28055884807. The next prime is 28055884867. The reversal of 28055884854 is 45848855082.

It is a happy number.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 28055884794 and 28055884803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158392 + ... + 284955.

It is an arithmetic number, because the mean of its divisors is an integer number (1795559400).

Almost surely, 2^28055884854 is an apocalyptic number.

28055884854 is an abundant number, since it is smaller than the sum of its proper divisors (29402015946).

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

28055884854 is a wasteful number, since it uses less digits than its factorization.

28055884854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443604.

The product of its (nonzero) digits is 16384000, while the sum is 57.

The spelling of 28055884854 in words is "twenty-eight billion, fifty-five million, eight hundred eighty-four thousand, eight hundred fifty-four".