28080212755 has 16 divisors (see below), whose sum is σ = 39236612544. Its totient is φ = 18891699840.

The previous prime is 28080212707. The next prime is 28080212759. The reversal of 28080212755 is 55721208082.

It is not a de Polignac number, because 28080212755 - 2¹⁵ = 28080179987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28080212759) 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, 7566936 + ... + 7570645.

It is an arithmetic number, because the mean of its divisors is an integer number (2452288284).

Almost surely, 2^28080212755 is an apocalyptic number.

28080212755 is a deficient number, since it is larger than the sum of its proper divisors (11156399789).

28080212755 is a wasteful number, since it uses less digits than its factorization.

28080212755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15137646.

The product of its (nonzero) digits is 89600, while the sum is 40.

The spelling of 28080212755 in words is "twenty-eight billion, eighty million, two hundred twelve thousand, seven hundred fifty-five".