28108280555 has 8 divisors (see below), whose sum is σ = 33730922544. Its totient is φ = 22485967200.

The previous prime is 28108280533. The next prime is 28108280561. The reversal of 28108280555 is 55508280182.

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

It is not a de Polignac number, because 28108280555 - 2²² = 28104086251 is a prime.

It is a super-2 number, since 2×28108280555² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184985 + ... + 300725.

It is an arithmetic number, because the mean of its divisors is an integer number (4216365318).

Almost surely, 2^28108280555 is an apocalyptic number.

28108280555 is a deficient number, since it is larger than the sum of its proper divisors (5622641989).

28108280555 is a wasteful number, since it uses less digits than its factorization.

28108280555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164317.

The product of its (nonzero) digits is 256000, while the sum is 44.

The spelling of 28108280555 in words is "twenty-eight billion, one hundred eight million, two hundred eighty thousand, five hundred fifty-five".