28530272858755 has 8 divisors (see below), whose sum is σ = 34236364910832. Its totient is φ = 22824193300128.

The previous prime is 28530272858753. The next prime is 28530272858777. The reversal of 28530272858755 is 55785827203582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28530272858755 - 2¹ = 28530272858753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28530272858753) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2987509 + ... + 8123161.

It is an arithmetic number, because the mean of its divisors is an integer number (4279545613854).

Almost surely, 2^{28530272858755} is an apocalyptic number.

28530272858755 is a deficient number, since it is larger than the sum of its proper divisors (5706092052077).

28530272858755 is a wasteful number, since it uses less digits than its factorization.

28530272858755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6246725.

The product of its (nonzero) digits is 376320000, while the sum is 67.

The spelling of 28530272858755 in words is "twenty-eight trillion, five hundred thirty billion, two hundred seventy-two million, eight hundred fifty-eight thousand, seven hundred fifty-five".