27896508956 has 12 divisors (see below), whose sum is σ = 48820279368. Its totient is φ = 13947857712.

The previous prime is 27896508919. The next prime is 27896508971. The reversal of 27896508956 is 65980569872.

It is a junction number, because it is equal to n+sod(n) for n = 27896508892 and 27896508901.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106310 + ... + 259026.

It is an arithmetic number, because the mean of its divisors is an integer number (4068356614).

Almost surely, 2^27896508956 is an apocalyptic number.

It is an amenable number.

27896508956 is a deficient number, since it is larger than the sum of its proper divisors (20923770412).

27896508956 is a wasteful number, since it uses less digits than its factorization.

27896508956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198388 (or 198386 counting only the distinct ones).

The product of its (nonzero) digits is 65318400, while the sum is 65.

The spelling of 27896508956 in words is "twenty-seven billion, eight hundred ninety-six million, five hundred eight thousand, nine hundred fifty-six".