27312452305 has 8 divisors (see below), whose sum is σ = 32778082152. Its totient is φ = 21847868928.

The previous prime is 27312452243. The next prime is 27312452327. The reversal of 27312452305 is 50325421372.

It can be written as a sum of positive squares in 4 ways, for example, as 2272238224 + 25040214081 = 47668^2 + 158241^2 .

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 27312452305 - 2¹³ = 27312444113 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, 203002 + ... + 309571.

It is an arithmetic number, because the mean of its divisors is an integer number (4097260269).

Almost surely, 2^27312452305 is an apocalyptic number.

It is an amenable number.

27312452305 is a deficient number, since it is larger than the sum of its proper divisors (5465629847).

27312452305 is a wasteful number, since it uses less digits than its factorization.

27312452305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523235.

The product of its (nonzero) digits is 50400, while the sum is 34.

Adding to 27312452305 its reverse (50325421372), we get a palindrome (77637873677).

The spelling of 27312452305 in words is "twenty-seven billion, three hundred twelve million, four hundred fifty-two thousand, three hundred five".