27143993289 has 32 divisors (see below), whose sum is σ = 41813524480. Its totient is φ = 15342530112.

The previous prime is 27143993269. The next prime is 27143993299. The reversal of 27143993289 is 98239934172.

It is not a de Polignac number, because 27143993289 - 2¹¹ = 27143991241 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (27143993269) 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 31 ways as a sum of consecutive naturals, for example, 716772 + ... + 753690.

It is an arithmetic number, because the mean of its divisors is an integer number (1306672640).

Almost surely, 2^27143993289 is an apocalyptic number.

It is an amenable number.

27143993289 is a deficient number, since it is larger than the sum of its proper divisors (14669531191).

27143993289 is a wasteful number, since it uses less digits than its factorization.

27143993289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37309.

The product of its digits is 5878656, while the sum is 57.

The spelling of 27143993289 in words is "twenty-seven billion, one hundred forty-three million, nine hundred ninety-three thousand, two hundred eighty-nine".