27458555168 has 54 divisors (see below), whose sum is σ = 59442578307. Its totient is φ = 12476474560.

The previous prime is 27458555161. The next prime is 27458555171. The reversal of 27458555168 is 86155585472.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 13729277584 + 13729277584 = 117172^2 + 117172^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=117172.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27458555161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 10309805 + ... + 10312467.

Almost surely, 2^27458555168 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 27458555168

27458555168 is an abundant number, since it is smaller than the sum of its proper divisors (31984023139).

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

27458555168 is an frugal number, since it uses more digits than its factorization.

27458555168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5358 (or 2676 counting only the distinct ones).

The product of its digits is 13440000, while the sum is 56.

The spelling of 27458555168 in words is "twenty-seven billion, four hundred fifty-eight million, five hundred fifty-five thousand, one hundred sixty-eight".