27317440491264 has 5760 divisors, whose sum is σ = 123084251136000. Its totient is φ = 5922758983680.

The previous prime is 27317440491203. The next prime is 27317440491307. The reversal of 27317440491264 is 46219404471372.

27317440491264 is a `hidden beast` number, since 2 + 7 + 3 + 174 + 404 + 9 + 1 + 2 + 64 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 27317440491264.

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 639 ways as a sum of consecutive naturals, for example, 581222138089 + ... + 581222138135.

It is an arithmetic number, because the mean of its divisors is an integer number (21368793600).

Almost surely, 2^{27317440491264} is an apocalyptic number.

27317440491264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27317440491264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61542125568000).

27317440491264 is an abundant number, since it is smaller than the sum of its proper divisors (95766810644736).

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

27317440491264 is a wasteful number, since it uses less digits than its factorization.

27317440491264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 54.

The spelling of 27317440491264 in words is "twenty-seven trillion, three hundred seventeen billion, four hundred forty million, four hundred ninety-one thousand, two hundred sixty-four".