28080513308 has 12 divisors (see below), whose sum is σ = 49527835392. Its totient is φ = 13929703200.

The previous prime is 28080513301. The next prime is 28080513311. The reversal of 28080513308 is 80331508082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28080513301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27637793 + ... + 27638808.

It is an arithmetic number, because the mean of its divisors is an integer number (4127319616).

Almost surely, 2^28080513308 is an apocalyptic number.

It is an amenable number.

28080513308 is a deficient number, since it is larger than the sum of its proper divisors (21447322084).

28080513308 is a wasteful number, since it uses less digits than its factorization.

28080513308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55276732 (or 55276730 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The spelling of 28080513308 in words is "twenty-eight billion, eighty million, five hundred thirteen thousand, three hundred eight".