27768555859 has 8 divisors (see below), whose sum is σ = 30294904752. Its totient is φ = 25242529440.

The previous prime is 27768555827. The next prime is 27768555883. The reversal of 27768555859 is 95855586772.

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 27768555859 - 2⁵ = 27768555827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27768555794 and 27768555803.

It is not an unprimeable number, because it can be changed into a prime (27768556859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121477 + ... + 265129.

It is an arithmetic number, because the mean of its divisors is an integer number (3786863094).

Almost surely, 2^27768555859 is an apocalyptic number.

27768555859 is a deficient number, since it is larger than the sum of its proper divisors (2526348893).

27768555859 is a wasteful number, since it uses less digits than its factorization.

27768555859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161237.

The product of its digits is 211680000, while the sum is 67.

The spelling of 27768555859 in words is "twenty-seven billion, seven hundred sixty-eight million, five hundred fifty-five thousand, eight hundred fifty-nine".