27061668289 has 8 divisors (see below), whose sum is σ = 29148431840. Its totient is φ = 25041151296.

The previous prime is 27061668269. The next prime is 27061668307. The reversal of 27061668289 is 98286616072.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27061668289 - 2⁹ = 27061667777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27061668269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16560792 + ... + 16562425.

It is an arithmetic number, because the mean of its divisors is an integer number (3643553980).

Almost surely, 2^27061668289 is an apocalyptic number.

It is an amenable number.

27061668289 is a deficient number, since it is larger than the sum of its proper divisors (2086763551).

27061668289 is a wasteful number, since it uses less digits than its factorization.

27061668289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33123279.

The product of its (nonzero) digits is 3483648, while the sum is 55.

The spelling of 27061668289 in words is "twenty-seven billion, sixty-one million, six hundred sixty-eight thousand, two hundred eighty-nine".