27130666724 has 72 divisors (see below), whose sum is σ = 58524221952. Its totient is φ = 10935025920.

The previous prime is 27130666711. The next prime is 27130666727. The reversal of 27130666724 is 42766603172.

It is not an unprimeable number, because it can be changed into a prime (27130666727) 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 23 ways as a sum of consecutive naturals, for example, 6098669 + ... + 6103115.

It is an arithmetic number, because the mean of its divisors is an integer number (812836416).

Almost surely, 2^27130666724 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 27130666724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29262110976).

27130666724 is an abundant number, since it is smaller than the sum of its proper divisors (31393555228).

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

27130666724 is a wasteful number, since it uses less digits than its factorization.

27130666724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6313 (or 6304 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 44.

The spelling of 27130666724 in words is "twenty-seven billion, one hundred thirty million, six hundred sixty-six thousand, seven hundred twenty-four".