27750765599 has 4 divisors (see below), whose sum is σ = 28036856064. Its totient is φ = 27464675136.

The previous prime is 27750765593. The next prime is 27750765617. The reversal of 27750765599 is 99556705772.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27750765599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27750765593) 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 3 ways as a sum of consecutive naturals, for example, 143045087 + ... + 143045280.

It is an arithmetic number, because the mean of its divisors is an integer number (7009214016).

Almost surely, 2^27750765599 is an apocalyptic number.

27750765599 is a deficient number, since it is larger than the sum of its proper divisors (286090465).

27750765599 is an equidigital number, since it uses as much as digits as its factorization.

27750765599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286090464.

The product of its (nonzero) digits is 41674500, while the sum is 62.

The spelling of 27750765599 in words is "twenty-seven billion, seven hundred fifty million, seven hundred sixty-five thousand, five hundred ninety-nine".