28385116455 has 16 divisors (see below), whose sum is σ = 46273096800. Its totient is φ = 14853091968.

The previous prime is 28385116423. The next prime is 28385116493. The reversal of 28385116455 is 55461158382.

It is not a de Polignac number, because 28385116455 - 2⁵ = 28385116423 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 (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17851480 + ... + 17853069.

It is an arithmetic number, because the mean of its divisors is an integer number (2892068550).

Almost surely, 2^28385116455 is an apocalyptic number.

28385116455 is a deficient number, since it is larger than the sum of its proper divisors (17887980345).

28385116455 is a wasteful number, since it uses less digits than its factorization.

28385116455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35704610.

The product of its digits is 1152000, while the sum is 48.

The spelling of 28385116455 in words is "twenty-eight billion, three hundred eighty-five million, one hundred sixteen thousand, four hundred fifty-five".