27657099456 has 56 divisors (see below), whose sum is σ = 83629804800. Its totient is φ = 7902028032.

The previous prime is 27657099419. The next prime is 27657099473. The reversal of 27657099456 is 65499075672.

It is a tau number, because it is divible by the number of its divisors (56).

It is a self number, because there is not a number n which added to its sum of digits gives 27657099456.

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 7 ways as a sum of consecutive naturals, for example, 10287756 + ... + 10290443.

Almost surely, 2^27657099456 is an apocalyptic number.

It is an amenable number.

27657099456 is an abundant number, since it is smaller than the sum of its proper divisors (55972705344).

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

27657099456 is a wasteful number, since it uses less digits than its factorization.

27657099456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20578221 (or 20578211 counting only the distinct ones).

The product of its (nonzero) digits is 28576800, while the sum is 60.

The spelling of 27657099456 in words is "twenty-seven billion, six hundred fifty-seven million, ninety-nine thousand, four hundred fifty-six".