27726867344 has 60 divisors (see below), whose sum is σ = 59314203648. Its totient is φ = 12546409920.

The previous prime is 27726867293. The next prime is 27726867353. The reversal of 27726867344 is 44376862772.

It is a super-2 number, since 2×27726867344² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27726867344.

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 11 ways as a sum of consecutive naturals, for example, 399617 + ... + 463839.

Almost surely, 2^27726867344 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 27726867344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29657101824).

27726867344 is an abundant number, since it is smaller than the sum of its proper divisors (31587336304).

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

27726867344 is a wasteful number, since it uses less digits than its factorization.

27726867344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64476 (or 64459 counting only the distinct ones).

The product of its digits is 18966528, while the sum is 56.

The spelling of 27726867344 in words is "twenty-seven billion, seven hundred twenty-six million, eight hundred sixty-seven thousand, three hundred forty-four".