27043157871 has 12 divisors (see below), whose sum is σ = 39064279800. Its totient is φ = 18027876240.

The previous prime is 27043157863. The next prime is 27043157891. The reversal of 27043157871 is 17875134072.

27043157871 is a `hidden beast` number, since 2 + 7 + 0 + 4 + 3 + 1 + 578 + 71 = 666.

It is not a de Polignac number, because 27043157871 - 2³ = 27043157863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27043157891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 153180 + ... + 278478.

It is an arithmetic number, because the mean of its divisors is an integer number (3255356650).

Almost surely, 2^27043157871 is an apocalyptic number.

27043157871 is a deficient number, since it is larger than the sum of its proper divisors (12021121929).

27043157871 is a wasteful number, since it uses less digits than its factorization.

27043157871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149286 (or 149283 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 45.

The spelling of 27043157871 in words is "twenty-seven billion, forty-three million, one hundred fifty-seven thousand, eight hundred seventy-one".