28000002555305 has 8 divisors (see below), whose sum is σ = 36654548799744. Its totient is φ = 20363638222000.

The previous prime is 28000002555257. The next prime is 28000002555391. The reversal of 28000002555305 is 50355520000082.

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

It is not a de Polignac number, because 28000002555305 - 2³⁴ = 27982822686121 is a prime.

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, 254545477721 + ... + 254545477830.

It is an arithmetic number, because the mean of its divisors is an integer number (4581818599968).

Almost surely, 2^{28000002555305} is an apocalyptic number.

It is an amenable number.

28000002555305 is a deficient number, since it is larger than the sum of its proper divisors (8654546244439).

28000002555305 is a wasteful number, since it uses less digits than its factorization.

28000002555305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509090955567.

The product of its (nonzero) digits is 60000, while the sum is 35.

Adding to 28000002555305 its reverse (50355520000082), we get a palindrome (78355522555387).

The spelling of 28000002555305 in words is "twenty-eight trillion, two million, five hundred fifty-five thousand, three hundred five".