27823552668 has 18 divisors (see below), whose sum is σ = 70331758224. Its totient is φ = 9274517544.

The previous prime is 27823552657. The next prime is 27823552699. The reversal of 27823552668 is 86625532872.

It is a happy number.

27823552668 is a `hidden beast` number, since 2 + 7 + 8 + 23 + 552 + 6 + 68 = 666.

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

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 5 ways as a sum of consecutive naturals, for example, 386438196 + ... + 386438267.

Almost surely, 2^27823552668 is an apocalyptic number.

It is an amenable number.

27823552668 is an abundant number, since it is smaller than the sum of its proper divisors (42508205556).

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

27823552668 is a wasteful number, since it uses less digits than its factorization.

27823552668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772876473 (or 772876468 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 54.

The spelling of 27823552668 in words is "twenty-seven billion, eight hundred twenty-three million, five hundred fifty-two thousand, six hundred sixty-eight".