27725421996 has 18 divisors (see below), whose sum is σ = 70083705692. Its totient is φ = 9241807320.

The previous prime is 27725421989. The next prime is 27725422001. The reversal of 27725421996 is 69912452772.

27725421996 is a `hidden beast` number, since 2 + 7 + 7 + 2 + 542 + 1 + 9 + 96 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

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 5 ways as a sum of consecutive naturals, for example, 385075270 + ... + 385075341.

Almost surely, 2^27725421996 is an apocalyptic number.

It is an amenable number.

27725421996 is an abundant number, since it is smaller than the sum of its proper divisors (42358283696).

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

27725421996 is a wasteful number, since it uses less digits than its factorization.

27725421996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770150621 (or 770150616 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 54.

The spelling of 27725421996 in words is "twenty-seven billion, seven hundred twenty-five million, four hundred twenty-one thousand, nine hundred ninety-six".