27143126605 has 16 divisors (see below), whose sum is σ = 37328567040. Its totient is φ = 18560575872.

The previous prime is 27143126561. The next prime is 27143126623. The reversal of 27143126605 is 50662134172.

It is a cyclic number.

It is not a de Polignac number, because 27143126605 - 2⁷ = 27143126477 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1067544 + ... + 1092673.

It is an arithmetic number, because the mean of its divisors is an integer number (2333035440).

Almost surely, 2^27143126605 is an apocalyptic number.

It is an amenable number.

27143126605 is a deficient number, since it is larger than the sum of its proper divisors (10185440435).

27143126605 is a wasteful number, since it uses less digits than its factorization.

27143126605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2160588.

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 27143126605 in words is "twenty-seven billion, one hundred forty-three million, one hundred twenty-six thousand, six hundred five".