27771623117 has 8 divisors (see below), whose sum is σ = 32337847296. Its totient is φ = 23355111312.

The previous prime is 27771623093. The next prime is 27771623149. The reversal of 27771623117 is 71132617772.

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 27771623117 - 2¹⁶ = 27771557581 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 (27771623177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37427693 + ... + 37428434.

It is an arithmetic number, because the mean of its divisors is an integer number (4042230912).

Almost surely, 2^27771623117 is an apocalyptic number.

It is an amenable number.

27771623117 is a deficient number, since it is larger than the sum of its proper divisors (4566224179).

27771623117 is an equidigital number, since it uses as much as digits as its factorization.

27771623117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74856187.

The product of its digits is 172872, while the sum is 44.

The spelling of 27771623117 in words is "twenty-seven billion, seven hundred seventy-one million, six hundred twenty-three thousand, one hundred seventeen".