27968938650 has 72 divisors (see below), whose sum is σ = 75845618784. Its totient is φ = 7388666400.

The previous prime is 27968938649. The next prime is 27968938693. The reversal of 27968938650 is 5683986972.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 242286 + ... + 338585.

It is an arithmetic number, because the mean of its divisors is an integer number (1053411372).

Almost surely, 2^27968938650 is an apocalyptic number.

27968938650 is an abundant number, since it is smaller than the sum of its proper divisors (47876680134).

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

27968938650 is a wasteful number, since it uses less digits than its factorization.

27968938650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580996 (or 580988 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 63.

The spelling of 27968938650 in words is "twenty-seven billion, nine hundred sixty-eight million, nine hundred thirty-eight thousand, six hundred fifty".