28350528775 has 12 divisors (see below), whose sum is σ = 35157236400. Its totient is φ = 22678758080.

The previous prime is 28350528727. The next prime is 28350528799. The reversal of 28350528775 is 57782505382.

It is a de Polignac number, because none of the positive numbers 2^k-28350528775 is a prime.

It is a congruent number.

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, 395931 + ... + 462019.

It is an arithmetic number, because the mean of its divisors is an integer number (2929769700).

Almost surely, 2^28350528775 is an apocalyptic number.

28350528775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28350528775 is a deficient number, since it is larger than the sum of its proper divisors (6806707625).

28350528775 is a wasteful number, since it uses less digits than its factorization.

28350528775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83258 (or 83253 counting only the distinct ones).

The product of its (nonzero) digits is 4704000, while the sum is 52.

The spelling of 28350528775 in words is "twenty-eight billion, three hundred fifty million, five hundred twenty-eight thousand, seven hundred seventy-five".