27959975005 has 16 divisors (see below), whose sum is σ = 33971669424. Its totient is φ = 22089185280.

The previous prime is 27959975003. The next prime is 27959975023. The reversal of 27959975005 is 50057995972.

It can be written as a sum of positive squares in 8 ways, for example, as 4038094116 + 23921880889 = 63546^2 + 154667^2 .

It is not a de Polignac number, because 27959975005 - 2¹ = 27959975003 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 (27959975003) 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 15 ways as a sum of consecutive naturals, for example, 161059 + ... + 286111.

It is an arithmetic number, because the mean of its divisors is an integer number (2123229339).

Almost surely, 2^27959975005 is an apocalyptic number.

It is an amenable number.

27959975005 is a deficient number, since it is larger than the sum of its proper divisors (6011694419).

27959975005 is a wasteful number, since it uses less digits than its factorization.

27959975005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125616.

The product of its (nonzero) digits is 8930250, while the sum is 58.

The spelling of 27959975005 in words is "twenty-seven billion, nine hundred fifty-nine million, nine hundred seventy-five thousand, five".