27393764117 has 4 divisors (see below), whose sum is σ = 27802626336. Its totient is φ = 26984901900.

The previous prime is 27393764089. The next prime is 27393764131. The reversal of 27393764117 is 71146739372.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27393764117 - 2⁸ = 27393763861 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 (27393734117) 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, 204431009 + ... + 204431142.

It is an arithmetic number, because the mean of its divisors is an integer number (6950656584).

Almost surely, 2^27393764117 is an apocalyptic number.

It is an amenable number.

27393764117 is a deficient number, since it is larger than the sum of its proper divisors (408862219).

27393764117 is an equidigital number, since it uses as much as digits as its factorization.

27393764117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408862218.

The product of its digits is 1333584, while the sum is 50.

The spelling of 27393764117 in words is "twenty-seven billion, three hundred ninety-three million, seven hundred sixty-four thousand, one hundred seventeen".