27088704664 has 64 divisors (see below), whose sum is σ = 60683328000. Its totient is φ = 11084097024.

The previous prime is 27088704647. The next prime is 27088704667. The reversal of 27088704664 is 46640788072.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27088704667) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 685312 + ... + 723760.

It is an arithmetic number, because the mean of its divisors is an integer number (948177000).

Almost surely, 2^27088704664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27088704664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30341664000).

27088704664 is an abundant number, since it is smaller than the sum of its proper divisors (33594623336).

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

27088704664 is a wasteful number, since it uses less digits than its factorization.

27088704664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39032 (or 39028 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 52.

The spelling of 27088704664 in words is "twenty-seven billion, eighty-eight million, seven hundred four thousand, six hundred sixty-four".