27956639453208 has 16 divisors (see below), whose sum is σ = 69891598633080. Its totient is φ = 9318879817728.

The previous prime is 27956639453189. The next prime is 27956639453221. The reversal of 27956639453208 is 80235493665972.

It is a super-2 number, since 2×27956639453208² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 582429988585 + ... + 582429988632.

Almost surely, 2^{27956639453208} is an apocalyptic number.

It is an amenable number.

27956639453208 is an abundant number, since it is smaller than the sum of its proper divisors (41934959179872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27956639453208 is a wasteful number, since it uses less digits than its factorization.

27956639453208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164859977226 (or 1164859977222 counting only the distinct ones).

The product of its (nonzero) digits is 587865600, while the sum is 69.

The spelling of 27956639453208 in words is "twenty-seven trillion, nine hundred fifty-six billion, six hundred thirty-nine million, four hundred fifty-three thousand, two hundred eight".