27135505771 has 8 divisors (see below), whose sum is σ = 29732779584. Its totient is φ = 24559966920.

The previous prime is 27135505763. The next prime is 27135505841. The reversal of 27135505771 is 17750553172.

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 27135505771 - 2³ = 27135505763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27135505711) 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, 5431125 + ... + 5436118.

It is an arithmetic number, because the mean of its divisors is an integer number (3716597448).

Almost surely, 2^27135505771 is an apocalyptic number.

27135505771 is a deficient number, since it is larger than the sum of its proper divisors (2597273813).

27135505771 is a wasteful number, since it uses less digits than its factorization.

27135505771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10867481.

The product of its (nonzero) digits is 257250, while the sum is 43.

The spelling of 27135505771 in words is "twenty-seven billion, one hundred thirty-five million, five hundred five thousand, seven hundred seventy-one".