27217023413 has 4 divisors (see below), whose sum is σ = 27220384620. Its totient is φ = 27213662208.

The previous prime is 27217023391. The next prime is 27217023439. The reversal of 27217023413 is 31432071272.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12449426929 + 14767596484 = 111577^2 + 121522^2 .

It is a cyclic number.

It is not a de Polignac number, because 27217023413 - 2²⁰ = 27215974837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27217023413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27217023913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1668428 + ... + 1684661.

It is an arithmetic number, because the mean of its divisors is an integer number (6805096155).

Almost surely, 2^27217023413 is an apocalyptic number.

It is an amenable number.

27217023413 is a deficient number, since it is larger than the sum of its proper divisors (3361207).

27217023413 is an equidigital number, since it uses as much as digits as its factorization.

27217023413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3361206.

The product of its (nonzero) digits is 14112, while the sum is 32.

Adding to 27217023413 its reverse (31432071272), we get a palindrome (58649094685).

The spelling of 27217023413 in words is "twenty-seven billion, two hundred seventeen million, twenty-three thousand, four hundred thirteen".