27135061617 has 16 divisors (see below), whose sum is σ = 36399723840. Its totient is φ = 17980318272.

The previous prime is 27135061607. The next prime is 27135061621. The reversal of 27135061617 is 71616053172.

It is not a de Polignac number, because 27135061617 - 2⁸ = 27135061361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27135061607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1220323 + ... + 1242359.

It is an arithmetic number, because the mean of its divisors is an integer number (2274982740).

Almost surely, 2^27135061617 is an apocalyptic number.

It is an amenable number.

27135061617 is a deficient number, since it is larger than the sum of its proper divisors (9264662223).

27135061617 is a wasteful number, since it uses less digits than its factorization.

27135061617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24512.

The product of its (nonzero) digits is 52920, while the sum is 39.

The spelling of 27135061617 in words is "twenty-seven billion, one hundred thirty-five million, sixty-one thousand, six hundred seventeen".