28328280005 has 16 divisors (see below), whose sum is σ = 34117217280. Its totient is φ = 22580540928.

The previous prime is 28328279999. The next prime is 28328280007. The reversal of 28328280005 is 50008282382.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28328280005 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28328280007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2505956 + ... + 2517234.

It is an arithmetic number, because the mean of its divisors is an integer number (2132326080).

Almost surely, 2^28328280005 is an apocalyptic number.

It is an amenable number.

28328280005 is a deficient number, since it is larger than the sum of its proper divisors (5788937275).

28328280005 is a wasteful number, since it uses less digits than its factorization.

28328280005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13060.

The product of its (nonzero) digits is 61440, while the sum is 38.

The spelling of 28328280005 in words is "twenty-eight billion, three hundred twenty-eight million, two hundred eighty thousand, five".