27343968291 has 24 divisors (see below), whose sum is σ = 41827934304. Its totient is φ = 17153821440.

The previous prime is 27343968229. The next prime is 27343968293. The reversal of 27343968291 is 19286934372.

27343968291 is a `hidden beast` number, since 2 + 7 + 343 + 9 + 6 + 8 + 291 = 666.

It is not a de Polignac number, because 27343968291 - 2¹⁴ = 27343951907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27343968293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1025865 + ... + 1052181.

It is an arithmetic number, because the mean of its divisors is an integer number (1742830596).

Almost surely, 2^27343968291 is an apocalyptic number.

27343968291 is a deficient number, since it is larger than the sum of its proper divisors (14483966013).

27343968291 is a wasteful number, since it uses less digits than its factorization.

27343968291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33131 (or 33128 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The spelling of 27343968291 in words is "twenty-seven billion, three hundred forty-three million, nine hundred sixty-eight thousand, two hundred ninety-one".