27193607221 has 16 divisors (see below), whose sum is σ = 29827381248. Its totient is φ = 24586988400.

The previous prime is 27193607153. The next prime is 27193607251. The reversal of 27193607221 is 12270639172.

It is a cyclic number.

It is not a de Polignac number, because 27193607221 - 2⁷ = 27193607093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27193607251) 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 15 ways as a sum of consecutive naturals, for example, 2867730 + ... + 2877196.

It is an arithmetic number, because the mean of its divisors is an integer number (1864211328).

Almost surely, 2^27193607221 is an apocalyptic number.

It is an amenable number.

27193607221 is a deficient number, since it is larger than the sum of its proper divisors (2633774027).

27193607221 is a wasteful number, since it uses less digits than its factorization.

27193607221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10872.

The product of its (nonzero) digits is 63504, while the sum is 40.

The spelling of 27193607221 in words is "twenty-seven billion, one hundred ninety-three million, six hundred seven thousand, two hundred twenty-one".