27746605980 has 36 divisors (see below), whose sum is σ = 84164705352. Its totient is φ = 7399094880.

The previous prime is 27746605927. The next prime is 27746606003. The reversal of 27746605980 is 8950664772.

27746605980 is a `hidden beast` number, since 2 + 7 + 7 + 46 + 6 + 0 + 598 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77073726 + ... + 77074085.

It is an arithmetic number, because the mean of its divisors is an integer number (2337908482).

Almost surely, 2^27746605980 is an apocalyptic number.

27746605980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27746605980 is an abundant number, since it is smaller than the sum of its proper divisors (56418099372).

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

27746605980 is a wasteful number, since it uses less digits than its factorization.

27746605980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154147826 (or 154147821 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 27746605980 in words is "twenty-seven billion, seven hundred forty-six million, six hundred five thousand, nine hundred eighty".