27936497908 has 54 divisors (see below), whose sum is σ = 55233937878. Its totient is φ = 12345315840.

The previous prime is 27936497899. The next prime is 27936497909. The reversal of 27936497908 is 80979463972.

It can be written as a sum of positive squares in 3 ways, for example, as 7114585104 + 20821912804 = 84348^2 + 144298^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 27936497908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27936497909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 22366468 + ... + 22367716.

Almost surely, 2^27936497908 is an apocalyptic number.

It is an amenable number.

27936497908 is a deficient number, since it is larger than the sum of its proper divisors (27297439970).

27936497908 is a wasteful number, since it uses less digits than its factorization.

27936497908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2561 (or 1299 counting only the distinct ones).

The product of its (nonzero) digits is 41150592, while the sum is 64.

The spelling of 27936497908 in words is "twenty-seven billion, nine hundred thirty-six million, four hundred ninety-seven thousand, nine hundred eight".