28080036455 has 4 divisors (see below), whose sum is σ = 33696043752. Its totient is φ = 22464029160.

The previous prime is 28080036431. The next prime is 28080036469. The reversal of 28080036455 is 55463008082.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-28080036455 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 2808003641 + ... + 2808003650.

It is an arithmetic number, because the mean of its divisors is an integer number (8424010938).

Almost surely, 2^28080036455 is an apocalyptic number.

28080036455 is a deficient number, since it is larger than the sum of its proper divisors (5616007297).

28080036455 is an equidigital number, since it uses as much as digits as its factorization.

28080036455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5616007296.

The product of its (nonzero) digits is 230400, while the sum is 41.

The spelling of 28080036455 in words is "twenty-eight billion, eighty million, thirty-six thousand, four hundred fifty-five".